login
A246382
Column 0 of triangular matrix A246381 = exp(L) where L(n,k) = C(2*n, 2*k+1)/2.
4
1, 1, 3, 12, 73, 584, 5889, 73184, 1089057, 19019632, 384301729, 8870379064, 231356923985, 6757908117208, 219384432585553, 7861969355896416, 309183385066009665, 13273824175564131424, 619230263962630471745, 31258573195774440816360, 1701019508896703563600241, 99446312062485160435840776
OFFSET
0,3
PROG
(PARI) {a(n)=local(L=matrix(n+1, n+1, r, c, if(r>=c, binomial(2*r-2, 2*c-1)/2)), A);
A=sum(m=0, n, L^m/m!); A[n+1, 1]}
for(n=0, 25, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Aug 24 2014
STATUS
approved