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A134282 Alternating row sums of triangle A134280 (S2(6)'). 2


%S 1,5,61,959,20821,545279,17128201,620355263,25594230937,1181868481463,

%T 60478614651577,3395069184089687,207524762064350473,

%U 13718967902774331287,975392219493426602569,74215525935813198093815

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

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

%Y Cf. A134281 (row sums of triangle A134280).

%K nonn,easy

%O 1,2

%A _Wolfdieter Lang_ Nov 13 2007

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Last modified September 22 06:08 EDT 2020. Contains 337289 sequences. (Running on oeis4.)