79136540960domain: NAppears in sequencesG.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = tetragonal pyramid group of order 8 with cycle index (z1^5+2*z1*z4+3*z1*z2^2+2*z1^3*z2)/8.at n=18A036784