A196288 n^8 + n.

0, 2, 258, 6564, 65540, 390630, 1679622, 5764808, 16777224, 43046730, 100000010, 214358892, 429981708, 815730734, 1475789070, 2562890640, 4294967312, 6975757458, 11019960594, 16983563060, 25600000020, 37822859382, 54875873558, 78310985304

Offset

0,2

Links

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

Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).

Formula

G.f. -2*x*(1+120*x+2157*x^2+7792*x^3+7827*x^4+2136*x^5+127*x^6) / (x-1)^9 . - R. J. Mathar, Oct 13 2011

a(n) = 2*A168067(n). - R. J. Mathar, Oct 13 2011

Prog

(Magma) [n^8+n: n in [0..30]]
(PARI) a(n)=n^8+n \\ Charles R Greathouse IV, Nov 21 2011

Crossrefs

Sequence in context: A100269 A258805 A327777 * A128697 A182422 A218435

Adjacent sequences: A196285 A196286 A196287 * A196289 A196290 A196291

Keyword

nonn,easy,less

Author

Vincenzo Librandi, Oct 01 2011

Status

approved