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 A183416 #7 Jul 22 2025 08:56:42 %S A183416 13,249,5257,118128,2748326,65521060,1589310971,39061152272, %T A183416 969912553822,24282796177101,612070344280674,15515224313870804, %U A183416 395180940568952691,10106978903439648223,259417022176683830195,6679368104700699189613 %N A183416 Number of nX3 0..2 arrays with each sum of a(1..i,1..j) no greater than i*j. %C A183416 Column 3 of A183419 %H A183416 R. H. Hardin, <a href="/A183416/b183416.txt">Table of n, a(n) for n = 1..62</a> %e A183416 Some solutions for 4X3 %e A183416 ..1..0..0....0..1..2....0..1..2....1..1..0....0..0..1....1..0..2....1..0..1 %e A183416 ..1..0..0....1..0..1....0..1..1....1..0..2....2..1..0....1..2..0....1..0..2 %e A183416 ..1..2..2....0..0..2....1..0..0....1..0..2....0..1..2....1..0..0....0..2..2 %e A183416 ..1..1..0....1..1..1....2..1..0....1..2..0....2..1..1....1..0..1....0..2..0 %K A183416 nonn %O A183416 1,1 %A A183416 _R. H. Hardin_ Jan 04 2011