44566

Appears in sequences

• Number of ways to split {1, 2, 3, ..., 3n} into n arithmetic progressions each with 3 terms.at n=9A104429
• Square of P(n,t) read by antidiagonals. P(n,t) = number of ways to split [t*n] into n arithmetic progressions each with t terms.at n=63A104443
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (0, 0, 1), (1, 0, -1), (1, 1, -1)}.at n=10A148650
• Fourth Lie-Betti number of a path graph on n vertices.at n=28A362007