A017001 - OEIS

A017001

a(n) = (7*n + 1)^9.

1, 134217728, 38443359375, 1207269217792, 14507145975869, 101559956668416, 502592611936843, 1953125000000000, 6351461955384057, 18014398509481984, 45848500718449031, 106868920913284608, 231616946283203125

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OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

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

MATHEMATICA

(7*Range[0, 20]+1)^9 (* or *) LinearRecurrence[{10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {1, 134217728, 38443359375, 1207269217792, 14507145975869, 101559956668416, 502592611936843, 1953125000000000, 6351461955384057, 18014398509481984}, 20] (* Harvey P. Dale, Oct 29 2024 *)

PROG

(Magma) [(7*n+1)^9: n in [0..20]]; // Vincenzo Librandi, Jul 13 2011

CROSSREFS

Sequence in context: A011577 A186573 A186574 * A017073 A017265 A017373

Adjacent sequences: A016998 A016999 A017000 * A017002 A017003 A017004

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved