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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A267627 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with every element equal to or 1 greater than any west neighbor modulo n and the upper left element equal to 0.

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%I A267627 #3 Jan 18 2016 15:12:40
%S A267627 1,35,265,2386,29387,469605,8889180,196362845,4969038690
%N A267627 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with every element equal to or 1 greater than any west neighbor modulo n and the upper left element equal to 0.
%C A267627 Column 4 of A267629.
%e A267627 Some solutions for n=4
%e A267627 ..0..0..1..1....0..0..1..2....0..0..1..2....0..1..1..2....0..1..2..3
%e A267627 ..1..1..2..2....1..1..2..3....3..3..0..1....3..0..1..2....2..3..0..1
%e A267627 ..2..3..3..0....0..1..2..3....2..3..3..0....2..3..0..0....0..1..2..2
%e A267627 ..2..3..3..0....2..3..3..0....1..1..2..2....1..2..3..3....3..3..0..1
%Y A267627 Cf. A267629.
%K A267627 nonn
%O A267627 1,2
%A A267627 _R. H. Hardin_, Jan 18 2016

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