A361451 - OEIS

A361451

Number of colorings of an n X n grid up to permutation of the colors with no element having the same color as any horizontal, vertical or antidiagonal neighbor.

%I #4 Mar 13 2023 13:31:17

%S 1,2,716,112073062,18633407199331522,6575857942770612176290018153,

%T 8769438200005128572266011359369913757287151,

%U 72530091349507692706447958441062812294511923156598114466468667,5746371835090565784276352813398004749296101606959968049467898643632416711373273639694

%N Number of colorings of an n X n grid up to permutation of the colors with no element having the same color as any horizontal, vertical or antidiagonal neighbor.

%Y Main diagonal of A208054.

%K nonn

%O 1,2

%A _Andrew Howroyd_, Mar 13 2023