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 A184126 #7 Jul 22 2025 09:27:16 %S A184126 84,43947,53817407,68564445616,71759424776253,60704077222861152, %T A184126 42630936592613426327,25543138074385245659345, %U A184126 13344262317615708218916589,6180837269782270549411789459,2571641374571848612017288269301 %N A184126 Number of nX6 0..3 arrays with rows and columns in nondecreasing order. %C A184126 Column 6 of A184129 %H A184126 R. H. Hardin, <a href="/A184126/b184126.txt">Table of n, a(n) for n = 1..71</a> %e A184126 Some solutions for 3X6 %e A184126 ..0..0..0..0..1..1....0..0..0..0..2..2....0..0..0..0..3..3....0..0..0..0..1..3 %e A184126 ..0..0..0..1..0..0....0..0..0..1..0..2....0..0..0..2..0..0....0..0..0..2..0..1 %e A184126 ..0..0..2..3..0..2....0..0..1..1..0..3....0..0..2..3..0..1....0..0..2..3..0..1 %K A184126 nonn %O A184126 1,1 %A A184126 _R. H. Hardin_ Jan 09 2011