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 A250226 #5 Jul 23 2025 12:15:24 %S A250226 6,48,132,872,3496,24888,144624,1019568,6717892,47046932,329430764, %T A250226 2322991876,16258944216,113059436760,777944537312 %N A250226 Number of length n+1 0..5 arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero. %C A250226 Column 5 of A250229 %e A250226 Some solutions for n=6 %e A250226 ..2....5....2....1....2....2....5....0....5....2....2....1....0....3....1....4 %e A250226 ..5....3....2....0....4....3....0....2....0....4....5....4....1....4....3....1 %e A250226 ..2....5....3....2....2....4....1....4....5....3....4....1....0....5....0....4 %e A250226 ..3....3....3....4....3....2....5....2....5....3....0....1....5....5....2....3 %e A250226 ..1....0....2....0....2....2....0....0....0....4....4....3....3....5....1....0 %e A250226 ..3....2....1....4....1....4....4....5....0....2....5....3....5....5....4....1 %e A250226 ..4....5....2....3....2....4....5....0....5....2....2....1....0....5....3....4 %K A250226 nonn %O A250226 1,1 %A A250226 _R. H. Hardin_, Nov 14 2014