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 A184128 #6 Jul 22 2025 09:27:23 %S A184128 165,419213,5503143135,105444472863183,1812407940171867666, %T A184128 25543138074385245659345,298254428253388683225868035, %U A184128 2957950981271006387648141644093 %N A184128 Number of nX8 0..3 arrays with rows and columns in nondecreasing order. %C A184128 Column 8 of A184129 %e A184128 Some solutions for 3X8 %e A184128 ..0..0..0..0..0..0..1..1....0..0..0..0..0..0..3..3....0..0..0..0..0..0..0..2 %e A184128 ..0..0..0..0..0..2..1..3....0..0..0..0..0..2..0..3....0..0..0..0..0..1..3..1 %e A184128 ..0..0..0..0..2..2..0..1....0..0..0..0..0..2..3..1....0..0..0..0..3..1..2..1 %K A184128 nonn %O A184128 1,1 %A A184128 _R. H. Hardin_ Jan 09 2011