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 A249524 #7 Jul 23 2025 12:03:25 %S A249524 606,1572,4120,10834,28500,74886,196346,515066,1352304,3552428, %T A249524 9333678,24522392,64420184,169229954,444582618,1168011448,3068677974, %U A249524 8062255694,21181628238,55649517844,146205759750,384121780036,1009193088634 %N A249524 Number of length n+5 0..2 arrays with no six consecutive terms having five times any element equal to the sum of the remaining five. %C A249524 Column 2 of A249530 %H A249524 R. H. Hardin, <a href="/A249524/b249524.txt">Table of n, a(n) for n = 1..210</a> %H A249524 R. H. Hardin, <a href="/A249524/a249524.txt">Empirical recurrence of order 92</a> %F A249524 Empirical recurrence of order 92 (see link above) %e A249524 Some solutions for n=6 %e A249524 ..0....2....2....2....2....0....1....0....2....0....1....2....1....2....1....0 %e A249524 ..2....0....1....1....2....2....1....0....0....1....2....1....0....0....0....1 %e A249524 ..0....0....0....1....1....0....0....2....1....1....1....1....0....1....0....2 %e A249524 ..2....2....2....2....0....1....2....0....2....1....0....1....2....2....1....0 %e A249524 ..0....0....1....1....0....1....1....2....0....0....0....0....2....1....2....1 %e A249524 ..1....2....2....2....0....0....0....2....0....0....0....0....0....1....1....1 %e A249524 ..0....2....1....1....1....0....0....0....2....1....2....1....0....0....1....0 %e A249524 ..2....2....2....1....1....1....2....0....2....0....0....0....2....0....2....0 %e A249524 ..2....1....1....2....2....0....0....2....2....1....0....2....0....0....2....2 %e A249524 ..2....1....0....0....0....2....2....1....2....0....2....2....2....2....2....0 %e A249524 ..2....1....1....2....1....0....1....2....0....2....1....2....0....2....2....0 %K A249524 nonn %O A249524 1,1 %A A249524 _R. H. Hardin_, Oct 31 2014