OFFSET
0,4
COMMENTS
FORMULA
a(n, m)= a(n-1, m-1)+(m+1)^2*a(n, m+1), a(n, -1) := 0, a(0, 0)=1, a(n, m)=0 if n<m.
a(n, m)=A060058(n, n-m).
EXAMPLE
{1}; {1,1}; {5,5,1}; {61,61,14,1}; ...
CROSSREFS
KEYWORD
AUTHOR
Wolfdieter Lang, Mar 16 2001
STATUS
approved