G.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.
A036784
G.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.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =25a(5) =102a(6) =432a(7) =1924a(8) =8808a(9) =41351a(10) =197674a(11) =959589a(12) =4716069a(13) =23422164a(14) =117360162a(15) =592567469a(16) =3011916144a(17) =15398787232a(18) =79136540960a(19) =408574756618
External references
- oeis: A036784