A054849
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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A178822: Triangle read by rows: T(n,k) = C(n+5,5) * C(n,k), 0 <= k <= n.
(match row sums)
1 · 6, 6 · 21, 42, 21 · 56, 168, 168, 56 … row sums 1, 12, 84, 448, 2016, 8064, 29568, …