A132167 - OEIS

%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