Number of unoriented colorings of the 8 cubic facets of a tesseract or of the 8 vertices of a hyperoctahedron.

A337957

Number of unoriented colorings of the 8 cubic facets of a tesseract or of the 8 vertices of a hyperoctahedron.

Terms

    a(0) =1a(1) =15a(2) =126a(3) =715a(4) =3060a(5) =10626a(6) =31465a(7) =82251a(8) =194580a(9) =424270a(10) =864501a(11) =1663740a(12) =3049501a(13) =5359095a(14) =9078630a(15) =14891626a(16) =23738715a(17) =36890001a(18) =56031760a(19) =83369265a(20) =121747626a(21) =174792640a(22) =247073751a(23) =344291325a(24) =473490550a(25) =643304376

External references