242161920

Appears in sequences

• Triangle read by rows. A generalization of unsigned Lah numbers, called L[4,1].at n=39A048854
• Denominators of series expansion of the e.g.f. for the Catalan numbers.at n=14A144187
• Table read by rows. Coefficients of Lommel polynomials L(n, m, z) = (Gamma(n + m) / (Gamma(n) * (z/2)^m)) * hypergeom([(1 - m)/2, -m/2], [n, -m, 1 - n - m], z^2) for n = m and descending powers.at n=44A171636
• Triangle t(n,m) read by rows which contains in row n integer values of n! * binomial(n+m+1,m+1) / binomial(n-m-1,m+1) sorted along increasing m.at n=33A176993
• Table read by rows. T(n, k) = [z^k] LommelR(n, n, 1/z) where LommelR are the Lommel polynomials.at n=50A369117