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 A184143 #7 Jul 22 2025 09:28:49 %S A184143 9,129,3351,136564,6979061,371484319,18470742266,818230288201, %T A184143 31887670171373,1096628939510047,33575397457792227,924491977646105742, %U A184143 23115171441961340021,529351592443419400759,11186675629728308277811 %N A184143 Number of nX8 binary arrays with rows and columns in nondecreasing order. %C A184143 Column 8 of A180985 %H A184143 R. H. Hardin, <a href="/A184143/b184143.txt">Table of n, a(n) for n = 1..200</a> %e A184143 Some solutions for 3X8 %e A184143 ..0..1..1..1..1..1..1..1....0..0..0..0..0..1..1..1....0..0..1..1..1..1..1..1 %e A184143 ..1..0..0..1..1..1..1..1....0..0..0..1..1..0..0..0....0..1..0..0..0..1..1..1 %e A184143 ..1..0..1..0..0..0..1..1....0..0..0..1..1..0..1..1....1..0..0..1..1..0..0..1 %K A184143 nonn %O A184143 1,1 %A A184143 _R. H. Hardin_ Jan 09 2011