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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.

A201148 Number of n X n 0..2 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally.

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%I A201148 #8 Jul 22 2025 16:07:25
%S A201148 3,20,235,4572,153796,9005581,938925282,177169920997,61277532455559
%N A201148 Number of n X n 0..2 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally.
%C A201148 Diagonal of A201155
%e A201148 Some solutions for n=4
%e A201148 ..0..0..2..1....0..0..0..0....0..0..0..0....0..0..1..1....0..0..0..2
%e A201148 ..0..0..2..2....0..0..0..0....0..0..0..1....0..0..1..2....0..0..0..2
%e A201148 ..0..2..2..2....0..0..2..1....0..0..1..1....2..2..2..2....1..1..1..2
%e A201148 ..1..1..2..2....0..0..1..1....0..0..2..2....2..2..2..2....2..2..2..2
%K A201148 nonn
%O A201148 1,1
%A A201148 _R. H. Hardin_ Nov 27 2011

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