Cogrowth sequence of the 18-element group S3 X C3 = <S,T,U | S^3, T^2, U^3, (ST)^2, [S,U], [T,U]>.
A378109
Cogrowth sequence of the 18-element group S3 X C3 = <S,T,U | S^3, T^2, U^3, (ST)^2, [S,U], [T,U]>.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =3a(5) =15a(6) =32a(7) =126a(8) =351a(9) =1094a(10) =3321a(11) =9801a(12) =29768a(13) =88452a(14) =266085a(15) =797162a(16) =2390391a(17) =7175547a(18) =21516800a(19) =64573362a(20) =193700403a(21) =581130734a(22) =1743421725a(23) =5230147077a(24) =15690706952a(25) =47071500840a(26) =141215033961a(27) =423644304722
External references
- oeis: A378109