237177

Appears in sequences

• a(n) = Sum[2^(A047260(i)-1), {i,1,n}].at n=11A113828
• The cell number where a knight is trapped when moving on a spirally numbered hexagonal board to the lowest available unvisited cell and starting at cell n.at n=14A333684
• The cell number where a knight is trapped when moving on a spirally numbered hexagonal board to the lowest available unvisited cell and starting at cell n.at n=21A333684
• Numbers that generate rotationally symmetrical XOR-triangles with a pattern of zero-triangles of edge length 3, some of which are clipped to result in some zero-triangles of edge length 2 at the edges.at n=3A334932