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 A302014 #4 Mar 30 2018 12:56:05 %S A302014 64,8192,772272,74917424,7320574992,714887543376,69786476414080, %T A302014 6812969999327424,665123348184876224,64933307877775254592, %U A302014 6339175601773524948352,618868043706883764304384 %N A302014 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero. %C A302014 Row 7 of A302010. %H A302014 R. H. Hardin, <a href="/A302014/b302014.txt">Table of n, a(n) for n = 1..210</a> %H A302014 R. H. Hardin, <a href="/A302014/a302014.txt">Empirical recurrence of order 78</a> %F A302014 Empirical recurrence of order 78 (see link above) %e A302014 Some solutions for n=5 %e A302014 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A302014 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 %e A302014 ..1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0. .1..1..1..0..0 %e A302014 ..0..0..1..0..0. .0..0..0..1..1. .0..0..0..1..0. .0..0..0..0..0 %e A302014 ..0..1..0..1..1. .1..1..0..1..1. .0..1..1..0..0. .1..1..1..1..1 %e A302014 ..0..0..1..1..0. .0..1..1..0..1. .1..1..1..0..1. .0..1..1..0..0 %e A302014 ..1..0..0..1..0. .1..1..1..1..1. .0..0..0..0..1. .0..0..0..1..1 %Y A302014 Cf. A302010. %K A302014 nonn %O A302014 1,1 %A A302014 _R. H. Hardin_, Mar 30 2018