5370751domain: NPropertiesPrimalityPrimeyesAppears in sequencesSquare array read by ascending antidiagonals: T(n,k) = [x^k] 1/(1 + x) * Legendre_P(k, (1 - x)/(1 + x))^(-n) for n >= 1, k >= 0.at n=20A364298a(n) = [x^n] 1/(1 + x) * Legendre_P(n, (1 - x)/(1 + x))^(-1) for n >= 0.at n=5A364299Prime numbersat n=372457