A376822 Number of colorings of a toroidal n X n grid using exactly two colors under translational symmetry.

0, 5, 62, 4154, 1342206, 1908897150, 11488774559742, 288230376353050814, 29850020237398264483838, 12676506002282327791964489726, 21970710674130840874443091905462270, 154866286100907105149651981766316633972734, 4427744605404865645682169434028029029963535286270

Offset: 1

Author

Andrew Howroyd, Oct 05 2024

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..50

Crossrefs

Main diagonal of A294684.

Cf. A179043, A376747 (colors permutable), A376823, A376824, A376825.

Formula

a(n) = A179043(n) - 2.