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 A262752 #6 Apr 13 2022 20:16:33 %S A262752 2,9,49,1645,135595,71515801 %N A262752 Number of (n+2) X (n+2) 0..1 arrays with each row divisible by 5 and each column divisible by 7, read as a binary number with top and left being the most significant bits. %C A262752 Diagonal of A262759. %e A262752 Some solutions for n=4 %e A262752 ..0..0..0..1..0..1....1..1..0..1..1..1....0..0..0..1..0..1....0..0..1..1..1..1 %e A262752 ..1..1..0..0..1..0....1..1..0..1..1..1....0..1..1..0..0..1....1..0..0..0..1..1 %e A262752 ..1..1..0..0..1..0....1..1..0..1..1..1....0..0..0..1..0..1....1..1..0..1..1..1 %e A262752 ..1..1..0..0..1..0....1..0..0..0..1..1....0..1..1..0..0..1....1..1..0..0..1..0 %e A262752 ..0..0..0..1..0..1....1..0..0..0..1..1....0..0..0..1..0..1....0..1..1..1..1..0 %e A262752 ..0..0..0..1..0..1....1..0..0..0..1..1....0..1..1..0..0..1....0..0..1..0..1..0 %Y A262752 Cf. A262759. %K A262752 nonn %O A262752 1,1 %A A262752 _R. H. Hardin_, Sep 30 2015