OFFSET
0,4
COMMENTS
Taking the triangle into negative values of n and k would produce results close to (k+1)*e*n! - 1, i.e., one less than multiples of A000522 for nonnegative n.
FORMULA
EXAMPLE
Triangle begins
0;
1, 0;
4, 1, 0;
15, 5, 1, 0;
64, 23, 6, 1, 0;
325, 119, 33, 7, 1, 0;
PROG
(PARI) T(n, k) = if (k==n, 0, n*T(n-1, k) + n - k);
tabl(nn) = {for (n=0, nn, for (k=0, n, print1(T(n, k), ", "); ); print(); ); } \\ Michel Marcus, Jun 16 2019
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Henry Bottomley, Apr 16 2003
EXTENSIONS
More terms from Michel Marcus, Jun 16 2019
STATUS
approved