A290315
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.
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A290315: Triangle T(n, k) read by rows: row n gives the coefficients of the numerator polynomials of the o.g.f. of the (n+1)-th diagonal of the Sheffer triangle A154537 (S2[2,1] generalized Stirling2…
(identification, match triangle)
1 · 1, 2 · 1, 16, 12 · 1, 66, 284, 120 … row sums 1, 3, 29, 471, 10729, 314427, 11265701, …