19771

Appears in sequences

• Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,0 3,1 4,0 5,0 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155328
• Number of 4-element nondividing subsets of {1, 2, ..., n}.at n=33A187491
• Ceiling((n+1/n)^6).at n=4A197905
• Round((n+1/n)^6).at n=4A198071
• Number of length n+4 0..6 arrays with no five consecutive elements with pattern ababa or abbba (with a!=b) and new values 0..6 introduced in 0..6 order.at n=4A244698
• Coordination sequence for (2,3,7) tiling of hyperbolic plane.at n=49A265057
• Number of non-isomorphic multiset partitions of weight n with exactly 2 distinct vertices, or with exactly 2 (not necessarily distinct) edges.at n=15A323656