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 A183414 #8 Jul 22 2025 08:56:27 %S A183414 2,34,5257,7798591,108917015732,14221257369534380, %T A183414 17218452637947555486763 %N A183414 Number of n X n 0..2 arrays with each sum of a(1..i,1..j) no greater than i*j. %C A183414 Diagonal of A183419 %e A183414 Some solutions for 4X4 %e A183414 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 %e A183414 ..0..0..1..2....0..1..1..1....0..0..2..1....0..1..1..1....0..0..1..2 %e A183414 ..0..0..1..0....1..2..0..2....2..0..2..1....2..2..2..2....1..2..1..1 %e A183414 ..1..0..2..2....1..0..2..2....0..1..1..2....0..1..1..1....0..2..2..1 %K A183414 nonn %O A183414 1,1 %A A183414 _R. H. Hardin_ Jan 04 2011