A039758
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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A039757: Triangle of coefficients in expansion of (x-1)*(x-3)*(x-5)*...*(x-(2*n-1)).
(match reversed triangle)
A028338 → x ↦ −x (shift -1)1 · -1, 1 · 3, -4, 1 · -15, 23, -9, 1 … row sums 1, 0, 0, 0, 0, 0, 0, 0, …