A027146 a(n) = A027144(2n, n-1).

1, 8, 30, 224, 880, 6656, 27104, 206336, 859392, 6565888, 27765760, 212615168, 908943360, 6970998784, 30045757440, 230691307520, 1000634122240, 7689454223360, 33522958204928, 257783270211584, 1128501249835008, 8682602001072128, 38141362595430400, 293587672402755584

Offset: 1

Author

Clark Kimberling

Keywords

• nonn

Extensions

More terms from Sean A. Irvine, Oct 24 2019