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 A184671 #7 Jun 02 2025 03:49:58 %S A184671 305991368,4308670152724,46028365937520330,545098899148923125052, %T A184671 6249280647180715433706216,72469574283521150229737165516, %U A184671 837185450907978354702239657652981,9684133255072575015900450075888762942 %N A184671 Number of (n+1)X8 0..3 arrays with no 2X2 subblock summing to less than 6. %C A184671 Column 7 of A184673 %H A184671 R. H. Hardin, <a href="/A184671/b184671.txt">Table of n, a(n) for n = 1..12</a> %e A184671 Some solutions for 3X8 %e A184671 ..0..0..0..0..2..1..0..3....0..0..0..0..2..1..3..3....0..0..0..0..2..3..0..3 %e A184671 ..3..3..3..3..2..3..2..3....3..3..3..3..2..2..3..1....3..3..3..3..2..3..1..2 %e A184671 ..0..0..0..0..2..1..1..1....0..0..0..0..2..3..2..3....0..0..0..0..2..2..2..1 %K A184671 nonn %O A184671 1,1 %A A184671 _R. H. Hardin_ Jan 19 2011