A132059 - OEIS

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A132059

Alternating row sums of triangle A132057 (s2(8)).

1

1, 27, 925, 35069, 1406679, 58491537, 2493656187, 108280678092, 4768395658314, 212335592489544, 9540877059969102, 431908789303835976, 19675192863275361294, 901089855844979674068, 41459199062515242868098

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

FORMULA

a(n)= -sum(A132057(n, m)*(-1)^m, m=1..n), n>=1.

G.f.: (-1 +(1-49*x)^(-1/7))/(6+(1-49*x)^(-1/7)).

CROSSREFS

Cf. A092087 (alternating row sums of s2(7)=A092083).

Sequence in context: A061695 A107050 A129999 * A292362 A239571 A017019

Adjacent sequences: A132056 A132057 A132058 * A132060 A132061 A132062

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang Sep 11 2007

STATUS

approved