A017548 a(n) = (12n+2)^4.

16, 38416, 456976, 2085136, 6250000, 14776336, 29986576, 54700816, 92236816, 146410000, 221533456, 322417936, 454371856, 623201296, 835210000, 1097199376, 1416468496, 1800814096, 2258530576

Offset

0,1

Links

Table of n, a(n) for n=0..18.

Index entries for linear recurrences with constant coefficients, signature (5, -10, 10, -5, 1).

Formula

a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5). - Wesley Ivan Hurt, Mar 02 2023

Mathematica

(12*Range[0, 20]+2)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {16, 38416, 456976, 2085136, 6250000}, 20] (* Harvey P. Dale, Jul 09 2017 *)

Crossrefs

Sequence in context: A280656 A265662 A253912 * A265588 A185141 A087586

Adjacent sequences: A017545 A017546 A017547 * A017549 A017550 A017551

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved