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 A214238 #6 Apr 18 2023 09:42:58 %S A214238 1,1,4,4,18,34,11,354,1067,500,41,7749,175884,133265,10867,162,231799, %T A214238 35910351,188834753,24424881,313132,715,8178855,8769708263, %U A214238 283323771619,253155125338,5178830173,10856948,3424,318511707,2254551356877 %N A214238 T(n,k) = Number of 0..7 colorings of an nx(k+1) array circular in the k+1 direction with new values 0..7 introduced in row major order. %C A214238 Table starts %C A214238 .....1........1............4...............11...................41 %C A214238 .....4.......18..........354.............7749...............231799 %C A214238 ....34.....1067.......175884.........35910351...........8769708263 %C A214238 ...500...133265....188834753.....283323771619......454598044684573 %C A214238 .10867.24424881.253155125338.2440058302217191.24340562361200808002 %H A214238 R. H. Hardin, <a href="/A214238/b214238.txt">Table of n, a(n) for n = 1..71</a> %e A214238 Some solutions for n=4, k=1 %e A214238 ..0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1 %e A214238 ..1..0....1..0....1..0....1..2....1..0....1..0....1..2....1..2....1..2....1..0 %e A214238 ..2..1....2..1....0..1....0..1....2..1....2..3....3..1....0..1....2..0....0..1 %e A214238 ..0..2....0..3....2..3....1..2....3..4....3..2....4..5....3..2....0..1....1..0 %Y A214238 Column 1 is A198908. %K A214238 nonn,tabl %O A214238 1,3 %A A214238 _R. H. Hardin_, Jul 08 2012