A132061 Alternating row sums of triangle A132056 (S2(8), Stirling2 generalization).

1, 7, 97, 2015, 55841, 1935719, 80574433, 3915183103, 217530794305, 13603055116679, 945542295992801, 72321915976403807, 6036466379411066977, 545983089637963491175, 53194885608199879974241

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Formula

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

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

Crossrefs

Cf. A092085 (alternating row sums of S2(7)=A092082).

Sequence in context: A174516 A058805 A305137 * A368439 A361093 A367134

Adjacent sequences: A132058 A132059 A132060 * A132062 A132063 A132064

Keyword

nonn,easy

Author

Wolfdieter Lang Sep 14 2007

Status

approved