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 A262847 #4 Oct 03 2015 16:09:49 %S A262847 900,31050,771084,14762016,290338650,5692555116,108936025308, %T A262847 2071613294466,39520865526156,752512142640600,14283775460054754, %U A262847 271538648699660460,5162251935414132180,98038344198110173098 %N A262847 Number of (n+2)X(5+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits. %C A262847 Column 5 of A262849. %H A262847 R. H. Hardin, <a href="/A262847/b262847.txt">Table of n, a(n) for n = 1..210</a> %e A262847 Some solutions for n=2 %e A262847 ..1..0..1..0..1..0..0....1..1..0..0..0..1..0....0..1..1..1..1..1..1 %e A262847 ..1..0..1..1..0..1..1....0..0..0..0..0..0..0....0..1..1..1..1..1..1 %e A262847 ..1..1..0..1..0..0..1....1..1..1..0..1..1..1....1..1..1..0..1..1..1 %e A262847 ..1..0..1..0..1..0..0....1..0..0..1..1..0..1....1..1..1..0..1..1..1 %Y A262847 Cf. A262849. %K A262847 nonn %O A262847 1,1 %A A262847 _R. H. Hardin_, Oct 03 2015