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 A262754 #4 Sep 30 2015 11:00:05 %S A262754 7,17,49,319,1345,6193,39751,229841,1339569,8663743,55835745, %T A262754 358608881,2379031207,15973282577,107339155889,729414305599, %U A262754 4997779808385,34344305727921,237112117127431,1643074583243345,11416088795366577 %N A262754 Number of (n+2)X(3+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 A262754 Column 3 of A262759. %H A262754 R. H. Hardin, <a href="/A262754/b262754.txt">Table of n, a(n) for n = 1..210</a> %e A262754 Some solutions for n=4 %e A262754 ..0..1..1..1..1....0..1..1..1..1....1..1..1..1..0....0..1..0..1..0 %e A262754 ..0..1..1..1..1....0..1..1..1..1....0..0..0..0..0....0..1..1..1..1 %e A262754 ..0..1..1..1..1....1..1..1..1..0....0..0..0..0..0....0..1..1..1..1 %e A262754 ..1..1..0..0..1....1..0..1..0..0....0..0..0..0..0....0..1..1..1..1 %e A262754 ..1..1..0..0..1....1..0..1..0..0....1..1..1..1..0....0..1..0..1..0 %e A262754 ..1..1..0..0..1....0..0..1..0..1....1..1..1..1..0....0..1..0..1..0 %Y A262754 Cf. A262759. %K A262754 nonn %O A262754 1,1 %A A262754 _R. H. Hardin_, Sep 30 2015