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 A222349 #5 Jun 02 2025 08:26:07 %S A222349 144,1145,5525,22950,90440,350056,1348536,5195700 %N A222349 Number of (n+5)X1 arrays of occupancy after each element moves up to +-n places including 0. %C A222349 Row 5 of A222345 %e A222349 Some solutions for n=3 %e A222349 ..1....1....1....0....0....0....0....0....0....0....0....2....0....1....1....2 %e A222349 ..0....1....3....0....0....1....0....0....2....0....2....2....1....1....2....0 %e A222349 ..3....0....0....3....2....2....2....0....2....1....0....0....1....0....0....3 %e A222349 ..0....4....0....2....0....0....1....3....1....4....1....2....1....0....0....0 %e A222349 ..1....0....1....0....1....0....1....4....3....1....1....0....0....0....0....2 %e A222349 ..0....0....2....0....2....3....1....0....0....0....2....0....0....4....1....0 %e A222349 ..3....0....1....1....1....0....2....1....0....0....1....2....5....2....4....0 %e A222349 ..0....2....0....2....2....2....1....0....0....2....1....0....0....0....0....1 %K A222349 nonn %O A222349 1,1 %A A222349 _R. H. Hardin_ Feb 16 2013