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A134282
Alternating row sums of triangle A134280 (S2(6)').
2
1, 5, 61, 959, 20821, 545279, 17128201, 620355263, 25594230937, 1181868481463, 60478614651577, 3395069184089687, 207524762064350473, 13718967902774331287, 975392219493426602569, 74215525935813198093815
OFFSET
1,2
FORMULA
a(n) = Sum_{m=1..n} A134280(n,m)*(-1)^(m-1), n>=1.
CROSSREFS
Cf. A134281 (row sums of triangle A134280).
Sequence in context: A012060 A012167 A162167 * A146760 A294024 A083082
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Nov 13 2007
STATUS
approved