A034271 a(n) = f(n,n+4) where f is given in A034261.

0, 1, 15, 125, 814, 4641, 24388, 121380, 581400, 2707386, 12339569, 55304535, 244567050, 1069784625, 4637437560, 19951650840, 85290143760, 362608278750, 1534330716750, 6465583372794, 27147098904156, 113618646478106, 474177584413720

Offset

0,3

Links

Table of n, a(n) for n=0..22.

Crossrefs

Cf. A034261.

Sequence in context: A264046 A349295 A027839 * A171220 A071080 A193365

Adjacent sequences: A034268 A034269 A034270 * A034272 A034273 A034274

Keyword

nonn

Author

Clark Kimberling

Extensions

Corrected and extended Apr 21 2000 - N. J. A. Sloane.

Status

approved