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A134277 Alternating row sums of triangle A134275 (S2(5)'). 2
1, 4, 41, 519, 9201, 194819, 4951381, 144651394, 4811109506, 178860848394, 7364318416206, 332403272058269, 16329673772560231, 867235540509998269, 49517829071816599856, 3024950770151869836519, 196866838411908745248981 (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(A134275(n,m)*(-1)^(m-1),m=1..n), n>=1.

CROSSREFS

Cf. A134276 (row sums of triangle A134275).

Sequence in context: A024383 A110041 A064327 * A085340 A230251 A001908

Adjacent sequences:  A134274 A134275 A134276 * A134278 A134279 A134280

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang Nov 13 2007

STATUS

approved

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Last modified September 20 03:25 EDT 2020. Contains 337264 sequences. (Running on oeis4.)