-90090

Appears in sequences

• Triangle of coefficients of Legendre polynomials P_n (x).at n=38A008316
• Irregular triangle read by rows: coefficients of polynomials related to a family of convolutions of certain central binomial sequences.at n=48A142961
• Triangle T(n,k): the coefficient [x^(n-k)] of the polynomial 2^n*n!*L(n,3/2,x), where L is the generalized Laguerre Polynomial in the Abramowitz-Stegun normalization.at n=19A229789
• Triangle read by rows: T(n, k) = (-1)^(k+1)*binomial(n,k)*binomial(n+k,k) (n >= k >= 0).at n=49A331430