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A134272 Alternating row sums of triangle A134151. 2
1, 3, 25, 239, 3289, 53111, 1031497, 22906903, 578734697, 16306214743, 508360540457, 17354157283287, 644314385719593, 25842490815894231, 1113789927340848937, 51332921853722842327, 2519491205735072674601 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..17.

FORMULA

a(n)=sum(A134151(n,m)*(-1)^(m-1),m=1..n), n>=1.

CROSSREFS

Cf. A134152 (row sums of triangle A134151).

Sequence in context: A118726 A066221 A332468 * A171640 A099913 A245925

Adjacent sequences:  A134269 A134270 A134271 * A134273 A134274 A134275

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang Nov 13 2007

STATUS

approved

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Last modified April 3 01:50 EDT 2020. Contains 333195 sequences. (Running on oeis4.)