A134282 Alternating row sums of triangle A134280 (S2(6)').

1, 5, 61, 959, 20821, 545279, 17128201, 620355263, 25594230937, 1181868481463, 60478614651577, 3395069184089687, 207524762064350473, 13718967902774331287, 975392219493426602569, 74215525935813198093815

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Formula

a(n)=sum(A134280(n,m)*(-1)^(m-1),m=1..n), n>=1.

Crossrefs

Cf. A134281 (row sums of triangle A134280).

Sequence in context: A012060 A012167 A162167 * A146760 A294024 A083082

Adjacent sequences: A134279 A134280 A134281 * A134283 A134284 A134285

Keyword

nonn,easy

Author

Wolfdieter Lang Nov 13 2007

Status

approved