login
A103366
Second column of triangle A103364, which equals the matrix inverse of the Narayana triangle (A001263).
4
1, -3, 12, -70, 585, -6741, 103068, -2023092, 49615695, -1487006785, 53477384268, -2272859942574, 112699083156751, -6447858833644515, 421601806346674320, -31242589674606301224, 2604618355967848204587, -242686626407684239621113, 25124942798118355122058980
OFFSET
2,2
PROG
(PARI) a(n)=if(n<2, 0, (matrix(n, n, m, j, binomial(m-1, j-1)*binomial(m, j-1)/j)^-1)[n, 2])
CROSSREFS
KEYWORD
sign
AUTHOR
Paul D. Hanna, Feb 02 2005
STATUS
approved