cp's OEIS Frontend

A265239 Number of n X 4 arrays of permutations of 4 copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0.

%I A265239 #5 Mar 02 2023 12:38:45
%S A265239 1,8,888,359172,327847656,559450092072,1595319525849600,
%T A265239 7039355228926588752,45427065106451676216288
%N A265239 Number of n X 4 arrays of permutations of 4 copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0.
%C A265239 Column 4 of A265241.
%e A265239 Some solutions for n=3
%e A265239 ..0..0..0..1....0..1..0..2....0..1..2..0....0..0..1..2....0..1..1..2
%e A265239 ..1..2..2..0....2..1..1..1....0..1..1..0....2..2..0..0....2..2..0..2
%e A265239 ..1..1..2..2....0..2..0..2....2..2..2..1....1..1..1..2....0..1..0..1
%Y A265239 Cf. A265241.
%K A265239 nonn
%O A265239 1,2
%A A265239 _R. H. Hardin_, Dec 06 2015