64776
domain: N
Appears in sequences
- E.g.f. sinh(log(1+x)^2).at n=8A009585
- Expansion of e.g.f. arcsin(log(x+1)^2).at n=8A012267
- Duplicate of A009585.at n=8A012270
- Triangle T(n, k) = Numbers of ways to place k points on a triangular grid of side n so that no three of them are vertices of an equilateral triangle of any orientation. Triangle read by rows.at n=42A240439
- Number of ways to place 5 points on a triangular grid of side n so that no three of these points are vertices of an equilateral triangle of any orientation.at n=4A240442