4656960

Appears in sequences

• a(n) = (n+1) * (2*n)! / n!.at n=6A002690
• Second (unsigned) column sequence of triangle A062138 (generalized a=5 Laguerre).at n=6A062148
• Triangle of unsigned 3-Lah numbers.at n=29A143498
• Triangle T(n, k) = n!*StirlingS2(n, k)/binomial(n, k), read by rows.at n=52A156815
• Triangle with entry a(n,m) giving the total number of bracelets of n beads (D_n symmetry) with n colors available for each bead, but only m distinct colors present, with m from {1, 2, ..., n} and n >= 1.at n=42A214306
• Triangle read by rows: T(n, k) = binomial(n, k) * Pochhammer(n, k).at n=34A370706
• Series expansion of the exponential generating function exp(wnp^!(x)) - 1 where wnp^!(x) = log(1+x) - x^2/(1+x).at n=11A383994
• E.g.f. A(x) satisfies A(x) = exp( x^3*A(x)^3 / (1 - x*A(x))^3 ).at n=8A387951
• Expansion of e.g.f. (1/x) * Series_Reversion( x/(1 + log(1-x^2)^2/x) ).at n=9A392887