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 A233024 #7 Jul 23 2025 07:47:36 %S A233024 243,12555,959385,75489671,6050598339,487651369463,39386531523609, %T A233024 3183658674622011,257414773440925415,20815582600558673815, %U A233024 1683301058522200223439,136126239210040751513149 %N A233024 Number of nX6 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero. %C A233024 Column 6 of A233026 %H A233024 R. H. Hardin, <a href="/A233024/b233024.txt">Table of n, a(n) for n = 1..210</a> %H A233024 R. H. Hardin, <a href="/A233024/a233024.txt">Empirical recurrence of order 50</a> %F A233024 Empirical recurrence of order 50 (see link above) %e A233024 Some solutions for n=2 %e A233024 ..0..0..2..3..3..3....0..2..2..3..2..0....0..1..0..1..0..0....0..0..1..1..1..1 %e A233024 ..0..0..2..3..2..3....2..0..2..3..2..2....1..0..1..1..1..1....0..0..1..3..1..3 %K A233024 nonn %O A233024 1,1 %A A233024 _R. H. Hardin_, Dec 03 2013