%I #9 Nov 28 2020 01:36:00
%S 1,1,2,7,27,118,539,2582,12736,64363,331239,1730575,9153221,48917102,
%T 263737228,1432790266,7835499474,43099916199,238299581172,
%U 1323627927733,7382441210007,41328639721641,232150252111223,1308049090247417
%N G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = tetragonal pyramid group of order 4 with cycle index (z1^5+2*z1*z4+z1*z2^2)/4.
%H B. A. Kennedy et al., <a href="https://pdfslide.net/documents/group-theory-and-isomerism.html">Group theory and isomerism</a>, Inorg. Chem. 3 (1964), 265-268, for cycle index.
%Y Cf. A036784.
%K nonn
%O 0,3
%A _N. J. A. Sloane_.