A016869 a(n) = (5n+1)^9.

1, 10077696, 2357947691, 68719476736, 794280046581, 5429503678976, 26439622160671, 101559956668416, 327381934393961, 922190162669056, 2334165173090451, 5416169448144896, 11694146092834141, 23762680013799936

Offset

0,2

Links

Table of n, a(n) for n=0..13.

Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).

Mathematica

(5*Range[0, 20]+1)^9 (* or *) LinearRecurrence[{10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {1, 10077696, 2357947691, 68719476736, 794280046581, 5429503678976, 26439622160671, 101559956668416, 327381934393961, 922190162669056}, 20] (* Harvey P. Dale, Jun 29 2022 *)

Crossrefs

Sequence in context: A186569 A186570 A250597 * A016917 A017061 A017145

Adjacent sequences: A016866 A016867 A016868 * A016870 A016871 A016872

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved