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 A241106 #7 Jul 23 2025 11:09:22 %S A241106 16,376,7846,162776,3374086,70145916,1454236806,30189380016, %T A241106 626548445696,13004327687556,269904513767276,5601924832399656, %U A241106 116268494681555446,2413172096267222836,50085748850277170776,1039537719846439186376 %N A241106 Number of nX6 0..2 arrays with no element equal to one or three horizontal or vertical neighbors, with new values 0..2 introduced in row major order. %C A241106 Column 6 of A241108 %H A241106 R. H. Hardin, <a href="/A241106/b241106.txt">Table of n, a(n) for n = 1..210</a> %H A241106 R. H. Hardin, <a href="/A241106/a241106.txt">Empirical recurrence of order 76</a> %F A241106 Empirical recurrence of order 76 (see link above) %e A241106 Some solutions for n=4 %e A241106 ..0..1..0..1..2..0....0..1..0..1..2..1....0..1..0..2..1..1....0..1..0..2..0..1 %e A241106 ..1..0..1..2..1..2....1..0..1..2..1..2....1..0..1..0..1..1....2..0..2..0..2..0 %e A241106 ..0..1..2..0..2..0....0..2..0..1..0..0....0..1..0..2..0..2....0..2..0..1..0..2 %e A241106 ..1..2..0..2..1..2....2..0..1..2..0..0....2..0..2..1..2..0....2..0..2..0..1..0 %K A241106 nonn %O A241106 1,1 %A A241106 _R. H. Hardin_, Apr 16 2014