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 A202746 #6 Oct 01 2021 16:56:40 %S A202746 2,32,282,5092,75302,1375912,24620522,472929952,9181463302, %T A202746 183977062692,3737085533882 %N A202746 Number of 5 X n 0..1 arrays with row sums equal and column sums unequal to adjacent columns. %C A202746 Row 5 of A202742. %e A202746 Some solutions for n=5 %e A202746 ..0..1..1..1..0....1..0..0..1..1....1..0..1..1..0....1..0..1..0..1 %e A202746 ..1..0..1..0..1....1..0..0..1..1....1..1..0..1..0....1..0..1..1..0 %e A202746 ..0..1..1..1..0....0..1..1..0..1....1..0..1..0..1....1..1..0..0..1 %e A202746 ..0..0..1..1..1....1..0..0..1..1....1..0..0..1..1....1..0..1..0..1 %e A202746 ..0..1..1..1..0....0..0..1..1..1....1..0..0..1..1....1..1..1..0..0 %Y A202746 Cf. A202742. %K A202746 nonn %O A202746 1,1 %A A202746 _R. H. Hardin_ Dec 23 2011