A027091 a(n) = A027082(n, 2n-4).

1, 1, 5, 17, 54, 169, 517, 1559, 4653, 13787, 40638, 119333, 349469, 1021433, 2981330, 8693467, 25333627, 73795263, 214915073, 625855927, 1822630172, 5308552227, 15464475465, 45060652609, 131334677147, 382907083385

Offset: 2

Author

Clark Kimberling

Keywords

• nonn

Crossrefs

Cf. A027082.