A017539 (12n+1)^7.

1, 62748517, 6103515625, 94931877133, 678223072849, 3142742836021, 11047398519097, 32057708828125, 80798284478113, 182803912081669, 379749833583241, 736141813551277, 1347646586640625, 2351243277537493

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (8, -28, 56, -70, 56, -28, 8, -1).

Mathematica

(12*Range[0, 20]+1)^7 (* or *) LinearRecurrence[{8, -28, 56, -70, 56, -28, 8, -1}, {1, 62748517, 6103515625, 94931877133, 678223072849, 3142742836021, 11047398519097, 32057708828125}, 20] (* Harvey P. Dale, Apr 02 2023 *)

Crossrefs

Sequence in context: A206187 A205369 A157855 * A227150 A186140 A172575

Adjacent sequences: A017536 A017537 A017538 * A017540 A017541 A017542

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved