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%I #4 Mar 15 2023 16:26:57
%S 1,7,4192,953124784,213291369981652792,96638817185266245591837984336,
%T 160065721141038888919235753368205172658011648,
%U 1603869086916486859475402575499346988054543498175515730927380336,150972529586126094166343144224892296826763766718771806614594599643773846828229334720096
%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 diagonal or antidiagonal neighbor.
%Y Main diagonal of A207981.
%K nonn
%O 1,2
%A _Andrew Howroyd_, Mar 13 2023
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