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 A214014 #7 Jul 22 2025 23:06:58 %S A214014 9800058,98721672541,69768979161580,11798463876314995, %T A214014 807203255071567008,29476753771054668510 %N A214014 Number of 5X5 nonnegative integer matrices with row and column i=1..5 having sum <= i*n. %C A214014 Row 5 of A214011 %e A214014 Some solutions for n=3 %e A214014 ..0..0..0..0..0....0..1..0..0..0....0..0..0..0..0....1..0..0..0..0 %e A214014 ..2..1..0..0..0....0..0..3..0..1....0..2..2..0..0....0..0..3..0..0 %e A214014 ..0..0..0..2..0....0..1..0..4..4....0..0..4..1..4....0..6..0..0..0 %e A214014 ..0..0..9..1..0....0..0..0..0..0....0..0..1.10..0....0..0..0..5..2 %e A214014 ..0..0..0..0..5....0..0..0..5..1....0..0..0..0..0....0..0..0..4.10 %K A214014 nonn %O A214014 1,1 %A A214014 _R. H. Hardin_ Jun 30 2012