A017628 (12n+8)^12.

68719476736, 4096000000000000, 1152921504606846976, 52654090776777588736, 951166013805414055936, 9774779120406941925376, 68719476736000000000000, 367666387654882241806336, 1601032218567680790102016, 5936027041831326482169856

Offset

0,1

Links

Table of n, a(n) for n=0..9.

Index entries for linear recurrences with constant coefficients, signature (13, -78, 286, -715, 1287, -1716, 1716, -1287, 715, -286, 78, -13, 1).

Formula

G.f.: -(1/((-1+x)^13))16777216 (4096+244087377*x+65545968099*x^2+ 2264116976447*x^3+ 21184641373221*x^4+ 70919574663978*x^5+ 95265789454590*x^6+ 52653257687070*x^7+ 11372907241098*x^8+ 821371888949*x^9+13623183471*x^10+16777203*x^11+x^12). - Harvey P. Dale, Aug 23 2021

Mathematica

(12*Range[0, 20]+8)^12 (* or *) LinearRecurrence[{13, -78, 286, -715, 1287, -1716, 1716, -1287, 715, -286, 78, -13, 1}, {68719476736, 4096000000000000, 1152921504606846976, 52654090776777588736, 951166013805414055936, 9774779120406941925376, 68719476736000000000000, 367666387654882241806336, 1601032218567680790102016, 5936027041831326482169856, 19342813113834066795298816, 56693912375296000000000000, 152097843090208773684330496}, 20] (* Harvey P. Dale, Aug 23 2021 *)

Crossrefs

Sequence in context: A017268 A017376 A017496 * A139572 A321284 A186095

Adjacent sequences: A017625 A017626 A017627 * A017629 A017630 A017631

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved