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 A275129 #4 Jul 17 2016 10:59:59 %S A275129 122,1024,2607,11092,71576,473185,3146574,20970214,139845553, %T A275129 930732169,6190918966,41214051338,274484938098,1827596183195, %U A275129 12167228578454,81014307245606,539449424460354,3591778777900364,23914435700214624 %N A275129 Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2. %C A275129 Column 6 of A275131. %H A275129 R. H. Hardin, <a href="/A275129/b275129.txt">Table of n, a(n) for n = 1..210</a> %H A275129 R. H. Hardin, <a href="/A275129/a275129.txt">Empirical recurrence of order 67</a> %F A275129 Empirical recurrence of order 67 (see link above) %e A275129 Some solutions for n=4 %e A275129 ..0..0..0..1..1..1. .0..0..1..1..1..2. .0..0..1..2..1..2. .0..0..0..1..1..2 %e A275129 ..1..1..2..0..2..0. .2..2..0..0..0..1. .1..2..0..0..0..1. .1..1..2..2..0..1 %e A275129 ..2..0..1..1..1..2. .0..1..2..1..2..0. .0..1..2..2..2..0. .0..0..1..1..2..2 %e A275129 ..1..2..0..0..0..1. .2..0..0..0..1..2. .2..0..0..1..1..1. .2..2..0..0..1..0 %Y A275129 Cf. A275131. %K A275129 nonn %O A275129 1,1 %A A275129 _R. H. Hardin_, Jul 17 2016