A101376 a(n) = n^2*(n^3 - n^2 + n + 1)/2.

0, 1, 14, 99, 424, 1325, 3366, 7399, 14624, 26649, 45550, 73931, 114984, 172549, 251174, 356175, 493696, 670769, 895374, 1176499, 1524200, 1949661, 2465254, 3084599, 3822624, 4695625, 5721326, 6918939, 8309224, 9914549, 11758950, 13868191, 16269824, 18993249

Offset

0,3

References

T. A. Gulliver, Sequences from Cubes of Integers, Int. Math. Journal, 4 (2003), 439-445.

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (6,-15,20,-15,6,-1)

Formula

G.f.: x*(1 + 8*x + 30*x^2 + 20*x^3 + x^4) / (x-1)^6. - R. J. Mathar, Jun 15 2011

Prog

(Magma) [n^2*(n^3-n^2+n+1)/2: n in [0..40]]; // Vincenzo Librandi, Jun 15 2011

Crossrefs

Sequence in context: A008415 A003206 A206257 * A174614 A099193 A086951

Adjacent sequences: A101373 A101374 A101375 * A101377 A101378 A101379

Keyword

nonn,easy

Author

N. J. A. Sloane, Jan 15 2005

Status

approved