%I #2 Mar 31 2012 13:20:14
%S 1,27,925,35069,1406679,58491537,2493656187,108280678092,
%T 4768395658314,212335592489544,9540877059969102,431908789303835976,
%U 19675192863275361294,901089855844979674068,41459199062515242868098
%N Alternating row sums of triangle A132057 (s2(8)).
%F a(n)= -sum(A132057(n, m)*(-1)^m, m=1..n), n>=1.
%F G.f.: (-1 +(1-49*x)^(-1/7))/(6+(1-49*x)^(-1/7)).
%Y Cf. A092087 (alternating row sums of s2(7)=A092083).
%K nonn,easy
%O 1,2
%A _Wolfdieter Lang_ Sep 11 2007