A108411

View A108411 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.

• A152198 → x ↦ x+1 (match row sums)
  1 · 1 · 2, 1 · 2, 1 … row sums 1, 1, 3, 3, 9, 9, 27, 27, …
  (−∞, −1] nonnegative rational roots
• A103633 → x ↦ x/(x+1) (match row sums)
  1 · 0, 1 · 0, 1, 2 · 0, 0, 1, 2 … row sums 1, 1, 3, 3, 9, 9, 27, 27, …
  [−1, 0] nonnegative rational roots
• A188440: Triangle T(n,k) read by rows: number of size-k antisymmetric subsets of {1,2,...,n}. (match row sums)
  1 · 1 · 1, 2 · 1, 2 … row sums 1, 1, 3, 3, 9, 9, 27, 27, …
  A188440 (−∞, 0] nonnegative rational roots