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 A188850 #7 Jul 22 2025 11:25:10 %S A188850 88,7744,209116,5541360,122025944,2684919693,57064872614, %T A188850 1214926248918,25687054061052,543463513057139,11481406014762851, %U A188850 242607898257328469,5124847724579317685,108262802675591978034,2286909485329724341706 %N A188850 Number of nX8 binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally. %C A188850 Column 8 of A188851 %H A188850 R. H. Hardin, <a href="/A188850/b188850.txt">Table of n, a(n) for n = 1..200</a> %e A188850 Some solutions for 3X8 %e A188850 ..0..1..0..1..1..1..0..0....1..0..1..0..1..1..1..1....0..1..1..1..1..0..1..0 %e A188850 ..1..1..1..1..0..1..1..1....0..1..0..1..0..1..0..1....1..1..1..1..1..1..1..1 %e A188850 ..0..1..1..1..0..1..1..1....1..0..1..0..1..1..1..1....0..1..1..1..1..1..1..1 %K A188850 nonn %O A188850 1,1 %A A188850 _R. H. Hardin_ Apr 12 2011