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 A249533 #6 Jul 23 2025 12:04:22 %S A249533 240,4120,42400,263156,1154444,4116620,12297972,32313804,76590192, %T A249533 167150680,340541012,655325864,1200479148,2107926892,3567580824, %U A249533 5846311812,9310701480,14457811924,21942849820,32624138612,47607833428 %N A249533 Number of length 3+5 0..n arrays with no six consecutive terms having five times any element equal to the sum of the remaining five. %C A249533 Row 3 of A249530 %H A249533 R. H. Hardin, <a href="/A249533/b249533.txt">Table of n, a(n) for n = 1..32</a> %e A249533 Some solutions for n=3 %e A249533 ..0....1....3....0....3....0....0....0....0....1....3....3....2....0....3....3 %e A249533 ..1....0....0....3....0....3....1....0....3....2....1....0....1....0....1....1 %e A249533 ..1....2....0....1....3....1....0....2....3....2....2....2....3....1....1....0 %e A249533 ..1....0....0....0....1....0....3....2....0....2....2....0....2....1....0....0 %e A249533 ..2....3....2....2....3....1....0....1....1....2....3....2....2....1....0....2 %e A249533 ..0....1....3....1....1....2....1....2....3....1....2....1....3....0....0....1 %e A249533 ..3....2....2....1....2....0....2....0....0....0....3....2....0....2....3....3 %e A249533 ..3....2....0....3....3....0....3....0....2....2....2....0....0....0....1....2 %K A249533 nonn %O A249533 1,1 %A A249533 _R. H. Hardin_, Oct 31 2014