A103327
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.
-
A103327: Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1).
(identification, match triangle)
1 · 3, 1 · 5, 10, 1 · 7, 35, 21, 1 … row sums 1, 4, 16, 64, 256, 1024, 4096, 16384, …
-
A091042: Triangle of even numbered entries of odd numbered rows of Pascal's triangle A007318.
(match reversed triangle)
1 · 1, 3 · 1, 10, 5 · 1, 21, 35, 7 … row sums 1, 4, 16, 64, 256, 1024, 4096, 16384, …
-
A103327 → reverse
(match reversed triangle)
1 · 1, 3 · 1, 10, 5 · 1, 21, 35, 7 … row sums 1, 4, 16, 64, 256, 1024, 4096, 16384, …
-
A091042 → reverse
(match triangle)
1 · 3, 1 · 5, 10, 1 · 7, 35, 21, 1 … row sums 1, 4, 16, 64, 256, 1024, 4096, 16384, …