57785

Appears in sequences

• (8*n^3 + 3*n^2 + n) / 6.at n=34A219054
• Triangle T(n,k) read by rows: left edge is 0, 1, 2, ... (cf. A001477); otherwise each entry is sum of entry to left and entries immediately above it to left and right, with 1 for the missing right term at right edge.at n=43A224791
• Expansion of (1/x) * Series_Reversion( x*(1+x-x^3)/(1+x)^2 ).at n=14A366095