A322944
identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.
-
A322944: Coefficients of a family of orthogonal polynomials. Triangle read by rows, T(n, k) for 0 <= k <= n.
(identification, match triangle)
1 · 1, 1 · 2, 6, 1 · 6, 38, 15, 1 … row sums 1, 2, 9, 60, 513, 5286, 63417, 865824, …