564499

Appears in sequences

• Expansion of (1/x) * Series_Reversion( x/(1+7*x+9*x^2) ).at n=6A386362
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) = Sum_{j=0..n} k^j * binomial(n,j) * Catalan(j+1).at n=51A386408