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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.

A201029 Number of nX4 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 A201029 #6 Jul 22 2025 16:03:47
%S A201029 15,295,4238,30157,96844,6814915,221032490,3642791292,29879423064,
%T A201029 103128216612,8111212273960,269665188133693
%N A201029 Number of nX4 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 A201029 Column 4 of A201033
%e A201029 Some solutions for n=3
%e A201029 ..0..0..2..1....0..0..1..3....0..0..1..2....0..2..1..3....0..1..1..2
%e A201029 ..0..2..2..4....1..2..2..3....0..1..4..3....0..2..1..3....0..3..2..4
%e A201029 ..1..3..3..4....1..4..4..4....2..3..3..4....1..3..4..4....0..4..3..3
%K A201029 nonn
%O A201029 1,1
%A A201029 _R. H. Hardin_ Nov 26 2011

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