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

Author

Wolfdieter Lang, Apr 06 2001

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A060558.

Programs

PARI

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

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.