%I #2 Mar 31 2012 13:20:14
%S 1,22,379,5713,80032,1080325,14354557,189853438,2511177679,
%T 33258000301,440953665088,5849978617585,77627638378537,
%U 1030136054227366,13669717178313811,181387989640645081,2406840013228174816
%N Row sums of triangle A132166 (s1(7)).
%F a(n)=sum(A132166(n,m),m=1..n), n>=1.
%F O.g.f.: g1(7, x)/(1-g1(7, x)) with g1(7, x)=(1-(1-6*x)^6)/(36*(1-6*x)^6), o.g.f. first column of A132166.
%Y Cf. A132168 (alternating row sums of A132166).
%K nonn,easy
%O 1,2
%A _Wolfdieter Lang_ Oct 12 2007