A091537 Alternating row sums of array A091534 (generalized Stirling2 array (5,2)).

1, 11, 341, 19841, 1683981, 143771891, -15351301839, -27396364105599, -24059921739904039, -21285850978489377989, -20814945866103868804819, -22980130985849165090290239, -28698856680135265507625861339, -40335646598356375740067161474269

Offset

1,2

Links

Table of n, a(n) for n=1..14.

Formula

a(n)=sum(((-1)^k)*A091534(n, k), k=2..2*n), n>=1.

Crossrefs

Cf. A072019 (row sums of A091534).

Sequence in context: A280669 A195505 A092609 * A327943 A277348 A033517

Adjacent sequences: A091534 A091535 A091536 * A091538 A091539 A091540

Keyword

sign,easy

Author

Wolfdieter Lang, Jan 23 2004

Status

approved