1001022

Appears in sequences

• Expansion of (1/x) * Series_Reversion( x * ((1-x)^2-x^3) ).at n=9A369214
• Triangle read by rows: T(n,k) is the number of 3-dimensional balanced ballot paths of 3n steps such that the height is exactly k, 2 <= k <= 2*n.at n=52A387912