Cogrowth sequence of the 16-element modular group M4(2) = <S,T | S^8, T^2, STS^3T>.
A377883
Cogrowth sequence of the 16-element modular group M4(2) = <S,T | S^8, T^2, STS^3T>.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =34a(5) =126a(6) =496a(7) =2052a(8) =8264a(9) =32776a(10) =130816a(11) =524272a(12) =2098144a(13) =8388576a(14) =33550336a(15) =134217792a(16) =536887424a(17) =2147483776a(18) =8589869056a(19) =34359738112a(20) =137439215104a(21) =549755813376
External references
- oeis: A377883