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 A185429 #8 Jul 22 2025 09:46:16 %S A185429 8653394212,1090205284029,84722449466168,4772160687307074, %T A185429 209290512833668811,7468756070356586903,223694029250999654095, %U A185429 5755145891541173071730,129520045203909930078682 %N A185429 Number of (n+2)X5 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order. %C A185429 Column 3 of A185435 %H A185429 R. H. Hardin, <a href="/A185429/b185429.txt">Table of n, a(n) for n = 1..200</a> %H A185429 R. H. Hardin, <a href="/A185429/a185429.txt">Formula: polynomial of degree 133</a> %F A185429 Polynomial of degree 133, see link %e A185429 Some solutions for 4X5 %e A185429 ..0..0..0..0..2....0..0..0..0..0....0..0..0..0..0....0..0..0..0..2 %e A185429 ..0..0..0..0..5....0..0..0..0..0....0..0..0..0..6....0..0..0..0..4 %e A185429 ..0..0..0..6..4....0..0..0..2..4....0..0..0..4..3....0..0..0..1..4 %e A185429 ..0..0..4..2..5....0..0..0..3..7....0..0..4..5..2....0..0..4..2..5 %K A185429 nonn %O A185429 1,1 %A A185429 _R. H. Hardin_ Jan 27 2011