42666

Appears in sequences

• Number of equilateral triangles formed by triples of points taken from a hexagonal chunk of side n in the hexagonal lattice.at n=12A008893
• 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, 0, 1), (-1, 1, 1), (1, 0, 1), (1, 1, 0)}.at n=8A150709
• Floor(1/{(6+n^4)^(1/4)}), where {}=fractional part.at n=39A184630
• Triangle T(n,m) read by rows: number of n X m binary matrices with no rows or columns in which all entries are the same (n >= 1, 1 <= m <= n).at n=17A283654