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.

1, 2, 716, 112073062, 18633407199331522, 6575857942770612176290018153, 8769438200005128572266011359369913757287151, 72530091349507692706447958441062812294511923156598114466468667, 5746371835090565784276352813398004749296101606959968049467898643632416711373273639694

Offset: 1

Author

Andrew Howroyd, Mar 13 2023

Keywords

• nonn

Crossrefs

Main diagonal of A208054.