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 A201153 #6 Jul 22 2025 16:07:59 %S A201153 53,745,9287,100362,988216,9005581,77316192,632331257,4971371594, %T A201153 37852928161,280870999959,2040764929737,14573664882124, %U A201153 102583696681074,713346304542539,4909295618862765,33487025412414016,226676629629048029 %N A201153 Number of nX6 0..2 arrays with every diagonal, row and column running average nondecreasing rightwards and downwards and diagonally. %C A201153 Column 6 of A201155 %e A201153 Some solutions for n=3 %e A201153 ..0..0..0..0..1..1....0..0..0..0..0..0....0..0..0..1..1..1....0..0..0..0..2..1 %e A201153 ..0..0..2..1..1..2....0..0..0..0..0..2....0..1..1..1..1..1....1..1..2..2..2..2 %e A201153 ..0..2..2..2..2..2....0..0..1..1..1..2....0..2..1..1..1..2....1..1..2..2..2..2 %K A201153 nonn %O A201153 1,1 %A A201153 _R. H. Hardin_ Nov 27 2011