diff --git a/oeis/__init__.py b/oeis/__init__.py
index 46b7ce74..263c75b6 100644
--- a/oeis/__init__.py
+++ b/oeis/__init__.py
@@ -23,6 +23,7 @@
 from .factorial import factorial
 from .fibonacci import fibonacci
 from .jacobsthal import jacobsthal
+from .kynea import kynea
 from .lazy_caterer import lazy_caterer
 from .leonardo import leonardo
 from .loeschian import loeschian
@@ -95,6 +96,7 @@
     "hexagonal",
     "hexagonal_pyramidal",
     "jacobsthal",
+    "kynea",
     "lazy_caterer",
     "leonardo",
     "loeschian",
diff --git a/oeis/kynea.py b/oeis/kynea.py
new file mode 100644
index 00000000..73f72cbb
--- /dev/null
+++ b/oeis/kynea.py
@@ -0,0 +1,12 @@
+# coding=utf-8
+from itertools import count
+from typing import Iterable
+
+from oeis.registry import registry
+
+
+@registry.register("A093069")
+def kynea() -> Iterable[int]:
+    """Kynea numbers."""
+    for n in count(start=1):
+        yield pow(pow(2, n) + 1, 2) - 2
diff --git a/poetry.lock b/poetry.lock
index 0db90b94..c0afc373 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -28,6 +28,18 @@ docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
 tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface"]
 tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins"]
 
+[[package]]
+name = "backports.entry-points-selectable"
+version = "1.1.0"
+description = "Compatibility shim providing selectable entry points for older implementations"
+category = "dev"
+optional = false
+python-versions = ">=2.7"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=4.6)", "pytest-flake8", "pytest-cov", "pytest-black (>=0.3.7)", "pytest-mypy", "pytest-checkdocs (>=2.4)", "pytest-enabler (>=1.0.1)"]
+
 [[package]]
 name = "black"
 version = "21.6b0"
@@ -376,6 +388,14 @@ category = "dev"
 optional = false
 python-versions = ">=3.6"
 
+[[package]]
+name = "platformdirs"
+version = "2.0.2"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
 [[package]]
 name = "pluggy"
 version = "0.13.1"
@@ -545,7 +565,7 @@ testing = ["filelock"]
 
 [[package]]
 name = "python-dateutil"
-version = "2.8.1"
+version = "2.8.2"
 description = "Extensions to the standard Python datetime module"
 category = "dev"
 optional = false
@@ -612,16 +632,17 @@ python-versions = "*"
 
 [[package]]
 name = "virtualenv"
-version = "20.4.7"
+version = "20.6.0"
 description = "Virtual Python Environment builder"
 category = "dev"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
 [package.dependencies]
-appdirs = ">=1.4.3,<2"
+"backports.entry-points-selectable" = ">=1.0.4"
 distlib = ">=0.3.1,<1"
 filelock = ">=3.0.0,<4"
+platformdirs = ">=2,<3"
 six = ">=1.9.0,<2"
 
 [package.extras]
@@ -646,6 +667,10 @@ attrs = [
     {file = "attrs-21.2.0-py2.py3-none-any.whl", hash = "sha256:149e90d6d8ac20db7a955ad60cf0e6881a3f20d37096140088356da6c716b0b1"},
     {file = "attrs-21.2.0.tar.gz", hash = "sha256:ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb"},
 ]
+"backports.entry-points-selectable" = [
+    {file = "backports.entry_points_selectable-1.1.0-py2.py3-none-any.whl", hash = "sha256:a6d9a871cde5e15b4c4a53e3d43ba890cc6861ec1332c9c2428c92f977192acc"},
+    {file = "backports.entry_points_selectable-1.1.0.tar.gz", hash = "sha256:988468260ec1c196dab6ae1149260e2f5472c9110334e5d51adcb77867361f6a"},
+]
 black = [
     {file = "black-21.6b0-py3-none-any.whl", hash = "sha256:dfb8c5a069012b2ab1e972e7b908f5fb42b6bbabcba0a788b86dc05067c7d9c7"},
     {file = "black-21.6b0.tar.gz", hash = "sha256:dc132348a88d103016726fe360cb9ede02cecf99b76e3660ce6c596be132ce04"},
@@ -945,6 +970,10 @@ pillow = [
     {file = "Pillow-8.3.1-pp37-pypy37_pp73-win_amd64.whl", hash = "sha256:1c03e24be975e2afe70dfc5da6f187eea0b49a68bb2b69db0f30a61b7031cee4"},
     {file = "Pillow-8.3.1.tar.gz", hash = "sha256:2cac53839bfc5cece8fdbe7f084d5e3ee61e1303cccc86511d351adcb9e2c792"},
 ]
+platformdirs = [
+    {file = "platformdirs-2.0.2-py2.py3-none-any.whl", hash = "sha256:0b9547541f599d3d242078ae60b927b3e453f0ad52f58b4d4bc3be86aed3ec41"},
+    {file = "platformdirs-2.0.2.tar.gz", hash = "sha256:3b00d081227d9037bbbca521a5787796b5ef5000faea1e43fd76f1d44b06fcfa"},
+]
 pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
@@ -1026,8 +1055,8 @@ pytest-xdist = [
     {file = "pytest_xdist-2.3.0-py3-none-any.whl", hash = "sha256:ed3d7da961070fce2a01818b51f6888327fb88df4379edeb6b9d990e789d9c8d"},
 ]
 python-dateutil = [
-    {file = "python-dateutil-2.8.1.tar.gz", hash = "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c"},
-    {file = "python_dateutil-2.8.1-py2.py3-none-any.whl", hash = "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"},
+    {file = "python-dateutil-2.8.2.tar.gz", hash = "sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86"},
+    {file = "python_dateutil-2.8.2-py2.py3-none-any.whl", hash = "sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9"},
 ]
 pyyaml = [
     {file = "PyYAML-5.4.1-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:3b2b1824fe7112845700f815ff6a489360226a5609b96ec2190a45e62a9fc922"},
@@ -1125,6 +1154,6 @@ typing-extensions = [
     {file = "typing_extensions-3.10.0.0.tar.gz", hash = "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342"},
 ]
 virtualenv = [
-    {file = "virtualenv-20.4.7-py2.py3-none-any.whl", hash = "sha256:2b0126166ea7c9c3661f5b8e06773d28f83322de7a3ff7d06f0aed18c9de6a76"},
-    {file = "virtualenv-20.4.7.tar.gz", hash = "sha256:14fdf849f80dbb29a4eb6caa9875d476ee2a5cf76a5f5415fa2f1606010ab467"},
+    {file = "virtualenv-20.6.0-py2.py3-none-any.whl", hash = "sha256:e4fc84337dce37ba34ef520bf2d4392b392999dbe47df992870dc23230f6b758"},
+    {file = "virtualenv-20.6.0.tar.gz", hash = "sha256:51df5d8a2fad5d1b13e088ff38a433475768ff61f202356bb9812c454c20ae45"},
 ]
diff --git a/tests/test_oeis.py b/tests/test_oeis.py
index e1877f2a..1fe76c1f 100644
--- a/tests/test_oeis.py
+++ b/tests/test_oeis.py
@@ -31,6 +31,7 @@
     hexagonal,
     hexagonal_pyramidal,
     jacobsthal,
+    kynea,
     lazy_caterer,
     leonardo,
     loeschian,
@@ -232,6 +233,12 @@ def test_jacobsthal() -> None:
     assert actual == expected
 
 
+def test_kynea() -> None:
+    expected: List[int] = [7, 23, 79, 287, 1087, 4223, 16639, 66047, 263167, 1050623]
+    actual: List[int] = list(islice(kynea(), 10))
+    assert actual == expected
+
+
 def test_lazy_caterer() -> None:
     expected: List[int] = [1, 2, 4, 7, 11, 16, 22, 29, 37, 46]
     actual: List[int] = list(islice(lazy_caterer(), 10))