63946

Appears in sequences

• Triangle T(n, k) read by rows; given by [1, 0, 0, 0, 0, ...] DELTA [1, 1, 2, 5, 14, 42, 132, 429, 1430, ...] (A000108) where DELTA is Deléham's operator defined in A084938.at n=50A085792
• a(n) = 9*n^3/2 - 21*n^2/2 + 8*n - 4.at n=23A232495