%I #5 Jan 11 2023 13:13:53
%S 0,0,0,0,4,10,36,94,294,794,2300,6394,18266,51592,147426,420512,
%T 1206740,3466876
%N a(n) is the number of asymmetrical polyiamonds of n cells.
%Y Cf. A000577.
%K nonn,more
%O 1,5
%A _John Mason_, Jan 11 2023