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%I #15 Sep 21 2022 01:45:21
%S 1,1,3,11,50,269,1605,10102,65323,430302,2868320,19299334,130807068,
%T 892075515,6115673262
%N Number of polyominoes consisting of n regular unit octagons.
%H Matthias Koch and Sascha Kurz, <a href="https://arxiv.org/abs/math/0605144">Enumeration of generalized polyominoes</a>, arXiv:math/0605144 [math.CO], 2006.
%H S. Kurz, <a href="http://www.mathe2.uni-bayreuth.de/sascha/oeis/k-polyominoes.html">k-polyominoes</a>.
%Y Cf. A000577, A000104, A000228, A103465, A103465, A103467, A103468.
%Y Cf. A000577, A000104, A000228, A103465, A103467, A103468, A103469, A103470, A103471, A103472, A103473, A115071, A120102, A120103, A120104.
%K more,nonn
%O 1,3
%A _Sascha Kurz_, Feb 07 2005
%E More terms from _Sascha Kurz_, Jun 09 2006
%E Definition corrected by _John Mason_ and _Sascha Kurz_, Sep 20 2020
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