A217213

View A217213 at the OEIS

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.

• A062145 → D (match row sums)
  4 · 10, 20 · 18, 90, 60 · 28, 252, 420, 140 … row sums 0, 4, 30, 168, 840, 3960, 18018, 80080, …
  (−∞, 0] nonnegative