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A134282 Alternating row sums of triangle A134280 (S2(6)'). +0
3
1, 5, 61, 959, 20821, 545279, 17128201, 620355263, 25594230937, 1181868481463, 60478614651577, 3395069184089687, 207524762064350473, 13718967902774331287, 975392219493426602569, 74215525935813198093815 (list; graph; listen)
OFFSET

1,2

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: A064328 A012060 A012167 this_sequence A146760 A083082 A009825

Adjacent sequences: A134279 A134280 A134281 this_sequence A134283 A134284 A134285

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de) Nov 13 2007

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.


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