A290316
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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A290316: 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 A282629 (S2[3,1] generalized Stirling2…
(identification, match triangle)
1 · 1, 6 · 1, 48, 90 · 1, 234, 2214, 2160 … row sums 1, 7, 139, 4609, 214297, 12820999, …