A153471 1/8 of the number of 8-colorings of a planar n X n X n triangular grid.

1, 42, 9072, 10078992, 57596549472, 1692939438332352, 255948135446478408192, 199034383110302504406200832, 796104049107763839322466439293952, 16378613975511111709055661675911519311872

Offset: 1

Author

R. H. Hardin, Dec 27 2008

Keywords

• nonn

Crossrefs

8th row of A182797/8.

Extensions

a(8)-a(10) from Alois P. Heinz, Dec 03 2010