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 A214110 #6 Jul 22 2025 23:08:24 %S A214110 91,34041,12777541,4797577911,1801391900581,676387200779521, %T A214110 253970131976197721,95360806682222518731,35806113871482016834611, %U A214110 13444493973598029022988181,5048143980581518949006312711 %N A214110 Number of 0..3 colorings on an nX7 array circular in the 7 direction with new values 0..3 introduced in row major order. %C A214110 Column 6 of A214112 %H A214110 R. H. Hardin, <a href="/A214110/b214110.txt">Table of n, a(n) for n = 1..210</a> %F A214110 Empirical: a(n) = 416*a(n-1) -15454*a(n-2) +89758*a(n-3) +90848*a(n-4) -438718*a(n-5) +62801*a(n-6) %e A214110 Some solutions for n=4 %e A214110 ..0..1..2..3..0..1..3....0..1..0..1..0..1..2....0..1..2..1..0..3..1 %e A214110 ..3..0..1..0..1..3..0....1..3..2..3..1..2..3....3..0..3..2..1..0..2 %e A214110 ..2..1..2..3..0..1..3....2..0..1..0..2..3..1....0..1..0..1..0..2..1 %e A214110 ..1..2..0..1..2..3..0....0..3..0..3..0..1..3....1..0..2..0..1..3..2 %K A214110 nonn %O A214110 1,1 %A A214110 _R. H. Hardin_ Jul 04 2012