Triangle read by rows, 1 <= k <= n: T(n,k) = non-isomorphic colorings of a toroidal n X k grid using exactly three colors under translational symmetry and swappable colors.

A294792

Triangle read by rows, 1 <= k <= n: T(n,k) = non-isomorphic colorings of a toroidal n X k grid using exactly three colors under translational symmetry and swappable colors.

Terms

    a(0) =0a(1) =0a(2) =3a(3) =1a(4) =18a(5) =345a(6) =2a(7) =136a(8) =7254a(9) =447156a(10) =5a(11) =946a(12) =158355a(13) =29032254a(14) =5647919665a(15) =18a(16) =7324a(17) =3580802a(18) =1961010826a(21) =43a(22) =56450a(23) =82968843a(24) =136166703562a(28) =126a(29) =447138a(30) =1960981598

External references