A060559 One half of sixth column (m=5) of triangle A060556.

3, 43, 311, 1551, 6061, 19877, 57057, 147433, 349778, 773058, 1609322, 3182842, 6021366, 10956806, 19264366, 32851038, 54506573, 88232485, 139667385, 216629985, 329804475, 493596675, 727193415, 1055862015

Offset

0,1

Links

Harry J. Smith, Table of n, a(n) for n = 0..500

Formula

a(n) = (8*n^2 + 72*n + 135)*binomial(n+8, 8)/45.

G.f.: (3 + 10*x + 3*x^2)/(1-x)^11.

Prog

(PARI) a(n)={(8*n^2 + 72*n + 135)*binomial(n + 8, 8)/45} \\ Harry J. Smith, Jul 07 2009

Crossrefs

Cf. A060558.

Sequence in context: A306970 A054698 A229695 * A197778 A321970 A199349

Adjacent sequences: A060556 A060557 A060558 * A060560 A060561 A060562

Keyword

nonn,easy

Author

Wolfdieter Lang, Apr 06 2001

Status

approved