A170778 a(n) = n^8*(n^6 + 1)/2.

0, 1, 8320, 2394765, 134250496, 3051953125, 39182921856, 339114418825, 2199031644160, 11438417750841, 50000050000000, 189875023971061, 641959447265280, 1968688600715005, 5556004150673536, 14596464294140625

Offset

0,3

Links

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

Index entries for linear recurrences with constant coefficients, signature (15,-105,455,-1365,3003,-5005, 6435, -6435,5005,-3003,1365,-455,105,-15,1).

Formula

G.f.: (x + 8305*x^2 + 2270070*x^3 + 99202166*x^4 + 1285861775*x^5 + 6421662783*x^6 + 13985567700*x^7 + 13985567700*x^8 + 6421662783*x^9 + 1285861775*x^10 + 99202166*x^11 + 2270070*x^12 + 8305*x^13 + x^14)/(1-x)^15. - G. C. Greubel, Dec 05 2017

Mathematica

Table[n^8*(n^6+1)/2, {n, 0, 30}] (* G. C. Greubel, Dec 05 2017 *)

Prog

(Magma) [n^8*(n^6+1)/2: n in [0..30]]; // Vincenzo Librandi, Aug 26 2011
(PARI) for(n=0, 30, print1(n^8*(n^6+1)/2, ", ")) \\ G. C. Greubel, Dec 05 2017

Crossrefs

Sequence in context: A206192 A252155 A258676 * A062852 A124414 A124415

Adjacent sequences: A170775 A170776 A170777 * A170779 A170780 A170781

Keyword

nonn,easy

Author

N. J. A. Sloane, Dec 11 2009

Status

approved