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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.

A201026 Number of n X n 0..4 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.

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%I A201026 #8 Jul 22 2025 16:03:27
%S A201026 5,10,296,30157,2579473,21586894705
%N A201026 Number of n X n 0..4 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 A201026 Diagonal of A201033
%e A201026 Some solutions for n=3
%e A201026 ..0..2..1....0..1..2....0..0..3....0..2..1....0..0..1....0..0..2....0..0..2
%e A201026 ..0..4..3....0..4..3....1..4..3....0..3..4....1..2..3....1..4..3....1..4..4
%e A201026 ..1..3..2....1..4..3....1..2..4....1..4..3....3..4..4....1..4..3....2..3..3
%K A201026 nonn
%O A201026 1,1
%A A201026 _R. H. Hardin_ Nov 26 2011

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