A017611 (12n+7)^7.

823543, 893871739, 27512614111, 271818611107, 1522435234375, 6060711605323, 19203908986159, 51676101935731, 122987386542487, 266001988046875, 532875860165503, 1002544368429379, 1789940649848551

Offset

0,1

Links

Table of n, a(n) for n=0..12.

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

Formula

a(0)=823543, a(1)=893871739, a(2)=27512614111, a(3)=271818611107, a(4)=1522435234375, a(5)=6060711605323, a(6)=19203908986159, a(7)=51676101935731, a(n)=8*a(n-1)- 28*a(n-2)+ 56*a(n-3)- 70*a(n-4)+ 56*a(n-5)- 28*a(n-6)+ 8*a(n-7)-a(n-8). - Harvey P. Dale, Sep 30 2015

Mathematica

(12*Range[0, 20]+7)^7 (* or *) LinearRecurrence[{8, -28, 56, -70, 56, -28, 8, -1}, {823543, 893871739, 27512614111, 271818611107, 1522435234375, 6060711605323, 19203908986159, 51676101935731}, 20] (* Harvey P. Dale, Sep 30 2015 *)

Crossrefs

Sequence in context: A017251 A017359 A017479 * A112443 A112428 A182532

Adjacent sequences: A017608 A017609 A017610 * A017612 A017613 A017614

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved