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A163933 Third right hand column of triangle A163932 2
11, 105, 510, 1750, 4830, 11466, 24360, 47520, 86625, 149435, 246246, 390390, 598780, 892500, 1297440, 1844976, 2572695, 3525165, 4754750, 6322470, 8298906, 10765150, 13813800, 17550000, 22092525, 27574911, 34146630, 41974310 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 3..999

FORMULA

a(n) = (n-2)*(n-1)*stirling1(n+1,n-1)/2

Gf. z^3*(11+6*z^2+28*z)/(1-z)^7

MAPLE

nmax:=30; with(combinat, stirling1): for n from 1 to nmax do for m from 1 to n do a(n, m):=(-1)^(n+m)*(m)*(m+1)*stirling1(n+1, m+1)/2 od: od: seq(a(n, n-2), n=3..nmax);

MATHEMATICA

Table[(n-2)(n-1)StirlingS1[n+1, n-1]/2, {n, 3, 30}] (* Harvey P. Dale, Oct 09 2011 *)

CROSSREFS

A048994 (Stirling1).

Equals the third right hand column of triangle A163932.

A000217 and A006011 are the first and second right hand columns.

Sequence in context: A173851 A295840 A158470 * A099839 A287834 A075183

Adjacent sequences:  A163930 A163931 A163932 * A163934 A163935 A163936

KEYWORD

easy,nonn

AUTHOR

Johannes W. Meijer, Aug 13 2009

STATUS

approved

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Last modified November 15 19:54 EST 2018. Contains 317240 sequences. (Running on oeis4.)