|
%I #4 Mar 30 2012 18:36:44
%S 1,2,7,40,333,3706,52128,891700,18038217,422455778,11265993155,
%T 337573337108,11241696796572,412291622024088,16524941775629068,
%U 719072894898300540,33777207106037303457,1704222469853179505170
%N Row sums of triangle A102316.
%o (PARI) {a(n)=local(M=matrix(n+1,n+1));for(m=0,n, for(k=0,m, M[m+1,k+1]=if(m==0|k==0,1,M[m+1,k]+(k+1)*M[m,k+1]))); return(sum(i=0,n,M[n+1,i+1]))}
%Y Cf. A102316.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Jan 04 2005
|
