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%I #13 Apr 26 2023 07:07:51
%S 1,3,16,129,1009,8997,80816,746483,6983847,66146105,632186200,
%T 6089173570
%N Number of polymings with n cells, distinguishing mirror images.
%C A polyming is a generalized polyiamond whose cells may be joined at corners as well as at edges. I introduced the term in 2010. In A319324 and elsewhere, David Bevan calls these shapes "polyglasses." In A239658, Abe Wits and Ragnar Groot Koerkamp call them simply "triangular polyplets."
%H G. L. Sicherman, <a href="https://sicherman.net/polymings/">Catalogue of Polymings</a>
%e a(3)=16, because there are 11 two-sided 3-mings (identifying mirror images), and 5 of them are chiral. See the link above.
%Y Cf. A239658, A319324.
%K nonn,hard,more
%O 1,2
%A _George Sicherman_, Jan 04 2021
%E a(11) and a(12) from _Aaron N. Siegel_, May 22 2022
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