A132060 Row sums of triangle A132056 (S2(8), Stirling2 generalization).

1, 9, 145, 3361, 101601, 3786601, 167756689, 8611201665, 502522701121, 32854723149961, 2378687990172561, 188913154677765409, 16328988725252964385, 1525987835722540609641, 153312690475268723848081

Offset

1,2

Comments

Generalized Bell numbers B(8,1;n).

Links

Table of n, a(n) for n=1..15.

Formula

a(n)=sum(A132056(n, m), m=1..n), n>=1.

E.g.f.: exp(-1+(1-7*x)^(-1/7)) - 1.

Mathematica

With[{nn=30}, Rest[CoefficientList[Series[Exp[-1+(1-7x)^(-1/7)]-1, {x, 0, nn}], x] Range[0, nn]!]] (* Harvey P. Dale, Sep 23 2011 *)

Crossrefs

Cf. A092084 (row sums of S2(7)=A092082).

Sequence in context: A046529 A331329 A064091 * A362656 A320333 A178185

Adjacent sequences: A132057 A132058 A132059 * A132061 A132062 A132063

Keyword

nonn,easy

Author

Wolfdieter Lang Sep 14 2007

Status

approved