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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.

A264700 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

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%I A264700 #3 Nov 21 2015 07:49:13
%S A264700 1,3,68,1541,37595,1947196,148906136,15063986288
%N A264700 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.
%C A264700 Row 3 of A264698.
%e A264700 Some solutions for n=5
%e A264700 ..0.12.10..6.11....0..8..5.10..6....0..1..9..5.10...12..0..5..1.11
%e A264700 ..5..9..1..3..7....2.14..7..3.11....6..2.14..3.11....8..6.10..7..3
%e A264700 ..8..4.13.14..2...12..4..9.13..1...12..8..4.13..7....4..9.13..2.14
%Y A264700 Cf. A264698.
%K A264700 nonn
%O A264700 1,2
%A A264700 _R. H. Hardin_, Nov 21 2015

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