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%I #42 Nov 01 2022 07:15:01
%S 0,0,0,1,15,121,1026,8696,81515,827282,9200052
%N a(n) is the number of n-gons in A000940 that are asymmetric.
%F a(n) = A000940(n) - A342533(n).
%F a(p) = ((((p-1)! + 1)/p) + p - 2 - (2^((p-1)/2)*((p-1)/2)!))/4 for prime p. See A007619.
%e Of the A000940(6) = 12 hexagons, 11 have symmetry and 1 is asymmetric, so a(6)=1.
%Y Cf. A000940, A342533.
%K nonn,more
%O 3,5
%A _Ian Mooney_, Oct 05 2022
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