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 A233071 #7 Jul 23 2025 07:51:09 %S A233071 122,9801,952869,95264272,9622519979,975239425635,98950914937033, %T A233071 10043490383783484,1019526537402445651,103496939942560822667, %U A233071 10506573357624046461778,1066586510863326927801797 %N A233071 Number of nX6 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order. %C A233071 Column 6 of A233073 %H A233071 R. H. Hardin, <a href="/A233071/b233071.txt">Table of n, a(n) for n = 1..210</a> %H A233071 R. H. Hardin, <a href="/A233071/a233071.txt">Empirical recurrence of order 58</a> %F A233071 Empirical recurrence of order 58 (see link above) %e A233071 Some solutions for n=2 %e A233071 ..0..1..0..0..0..0....0..1..0..0..0..2....0..1..0..1..3..3....0..1..1..0..0..2 %e A233071 ..1..0..0..1..1..0....1..1..0..2..2..0....1..0..0..1..3..2....1..1..0..0..0..2 %K A233071 nonn %O A233071 1,1 %A A233071 _R. H. Hardin_, Dec 03 2013