OFFSET
2,2
COMMENTS
LINKS
Wolfdieter Lang, First 8 rows.
FORMULA
P(k, n) := (-1)^k*(k-1)!*(k-2)!*(Sum_{j=2..k} (-1)^j*binomial(k, j)*risefac(j-1, n)*risefac(j, n))/(n!^2*(n+1)*Product_{p=1..ceiling(k/2)-1} (n-p)) is a polynomial in n of degree A032766(k-2), k >= 2. risefac(x, n) := Pochhammer(x, n).
a(k, m) = [n^m]P(k, n) with the above defined polynomials in n defined for k >= 2.
CROSSREFS
KEYWORD
sign,easy,tabf
AUTHOR
Wolfdieter Lang, Feb 13 2004
STATUS
approved