A112496 Fourth column of triangle A112493 used for e.g.f.s of Stirling2 diagonals.

15, 210, 1750, 11368, 63805, 325930, 1561516, 7150000, 31682651, 137031986, 582035714, 2438479592, 10109790809, 41579014154, 169946747160, 691299506640, 2801567046135, 11320801495410, 45642930545070, 183698923750440

Offset: 0

Author

Wolfdieter Lang, Oct 14 2005

Keywords

• nonn
• easy

Links

• G. C. Greubel, Table of n, a(n) for n = 0..1000
• Index entries for linear recurrences with constant coefficients, signature (20, -175, 882, -2835, 6072, -8777, 8458, -5204, 1848, -288).

Crossrefs

Cf. A112495 (third column).

Column k=3 of A124324 (shifted).

Programs

Mathematica

CoefficientList[Series[(15 - 90*x + 175*x^2 - 112*x^3)/((1 - x)^4*(1 - 2*x)^3*(1 - 3*x)^2*(1 - 4*x)), {x, 0, 50}], x] (* G. C. Greubel, Nov 13 2017 *)
Table[2^(2*n+11)/3- 3^(n+5)*(n+9)/2 + 2^(n+3)*(n^2 + 15*n + 58) - n^3/6 - 3*n^2 - 55*n/3 - 229/6, {n,0,25}] (* Vaclav Kotesovec, Jul 23 2021 *)

PARI

x='x+O('x^50); Vec((15-90*x+175*x^2-112*x^3)/((1-x)^4*(1-2*x)^3*(1-3*x)^2*(1-4*x))) \\ G. C. Greubel, Nov 13 2017

Formula

G.f.: (15-90*x+175*x^2-112*x^3)/((1-x)^4*(1-2*x)^3*(1-3*x)^2*(1-4*x)).

a(n) = 4*a(n-1) + (n+5)*A112495(n).

a(n) = 2^(2*n+11)/3- 3^(n+5)*(n+9)/2 + 2^(n+3)*(n^2 + 15*n + 58) - n^3/6 - 3*n^2 - 55*n/3 - 229/6. - Vaclav Kotesovec, Jul 23 2021