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 A200898 #6 Jul 22 2025 15:59:42 %S A200898 46,649,1329,352339,8982755,18172239,6469118415,184228587259, %T A200898 391072885802 %N A200898 Number of nX4 0..5 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. %C A200898 Column 4 of A200902 %e A200898 Some solutions for n=3 %e A200898 ..0..0..2..1....0..0..1..2....0..0..2..1....0..0..1..1....0..2..1..1 %e A200898 ..1..3..5..5....1..3..3..4....2..4..5..4....2..2..5..3....0..3..2..5 %e A200898 ..2..3..4..4....2..5..5..4....1..3..5..3....3..5..4..4....3..4..4..5 %K A200898 nonn %O A200898 1,1 %A A200898 _R. H. Hardin_ Nov 23 2011