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A131176 a(n)=(n^5-n-10)/10. 1
-1, -1, 2, 23, 101, 311, 776, 1679, 3275, 5903, 9998, 16103, 24881, 37127, 53780, 75935, 104855, 141983, 188954, 247607, 319997, 408407, 515360, 643631, 796259, 976559, 1188134, 1434887, 1721033, 2051111, 2429996, 2862911, 3355439, 3913535, 4543538, 5252183, 6046613, 6934391 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..37.

FORMULA

a(n) = ((n^5 - n - 1) - 9)/10

G.f.: (-1+5*x-7*x^2+16*x^3-2*x^4+x^5)/(-1+x)^6. - R. J. Mathar, Nov 14 2007

MATHEMATICA

Table[((n^5 - n - 1) - 9)/10, {n, 0, 100}]

CROSSREFS

Cf. A126426, A134326, A134327.

Sequence in context: A239186 A238185 A053999 * A141405 A068876 A073175

Adjacent sequences:  A131173 A131174 A131175 * A131177 A131178 A131179

KEYWORD

sign

AUTHOR

Artur Jasinski, Oct 20 2007

STATUS

approved

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Last modified October 16 03:28 EDT 2019. Contains 328040 sequences. (Running on oeis4.)