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A265240 Number of n X 5 arrays of permutations of 5 copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0.

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%I A265240 #7 Jan 27 2024 16:28:54
%S A265240 1,16,8880,29189088,284341627344,6395116792255680,
%T A265240 285689982691389531024
%N A265240 Number of n X 5 arrays of permutations of 5 copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0.
%C A265240 Column 5 of A265241.
%e A265240 Some solutions for n=3:
%e A265240 ..0..1..1..1..1....0..1..2..1..2....0..1..0..2..1....0..0..1..2..1
%e A265240 ..2..0..2..0..2....2..1..2..1..0....0..1..0..2..2....1..0..1..2..1
%e A265240 ..2..0..2..0..1....0..0..2..1..0....2..2..1..1..0....2..2..0..0..2
%Y A265240 Cf. A265241.
%K A265240 nonn
%O A265240 1,2
%A A265240 _R. H. Hardin_, Dec 06 2015

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