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.
%I A264835 #4 Nov 26 2015 07:22:04 %S A264835 1,2,2,8,46,182,701,4917,32687,241991,2924430,40311661,479980432, %T A264835 5962660544,111112429148,1934811730068 %N A264835 Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 7. %C A264835 Column 2 of A264837. %e A264835 All solutions for n=4 %e A264835 ..0..7....0..1....0..1....0..7....7..2....0..2....0..7....0..1 %e A264835 ..1..2....7..2....7..2....1..2....0..3....7..3....1..3....7..3 %e A264835 ..3..4....3..4....5..3....5..3....1..4....1..4....2..4....2..4 %e A264835 ..5..6....5..6....6..4....6..4....5..6....5..6....5..6....5..6 %Y A264835 Cf. A264837. %K A264835 nonn %O A264835 1,2 %A A264835 _R. H. Hardin_, Nov 26 2015