Number of achiral colorings of the 8 triangular faces of a regular octahedron or the 8 vertices of a cube using n or fewer colors.

A337897

Number of achiral colorings of the 8 triangular faces of a regular octahedron or the 8 vertices of a cube using n or fewer colors.

Terms

    a(0) =1a(1) =21a(2) =201a(3) =1076a(4) =4025a(5) =11901a(6) =29841a(7) =66256a(8) =134001a(9) =251725a(10) =445401a(11) =750036a(12) =1211561a(13) =1888901a(14) =2856225a(15) =4205376a(16) =6048481a(17) =8520741a(18) =11783401a(19) =16026900a(20) =21474201a(21) =28384301a(22) =37055921a(23) =47831376a(24) =61100625a(25) =77305501a(26) =96944121

External references