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 A186179 #7 Jul 22 2025 10:18:39 %S A186179 7459396065112,1400823449171621,132151619698400257, %T A186179 8143852416376007571,366735655207529538678,12873752982804494965778, %U A186179 367664080675457084952938,8806300375583656355791730,180948530569018142116132834 %N A186179 Number of (n+2)X10 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order. %C A186179 Column 8 of A186180 %H A186179 Ron Hardin, <a href="/A186179/b186179.txt">Table of n, a(n) for n = 1..11</a> %e A186179 Some solutions for 4X10 %e A186179 ..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..1 %e A186179 ..0..0..0..0..0..0..0..0..0..2....0..0..0..0..0..0..0..0..1..1 %e A186179 ..0..0..0..0..0..0..0..0..2..1....0..0..0..0..0..0..0..0..2..3 %e A186179 ..0..0..0..0..0..0..0..3..5..2....0..0..0..0..0..0..0..0..2..4 %K A186179 nonn %O A186179 1,1 %A A186179 _R. H. Hardin_ Feb 13 2011