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 A189195 #7 Dec 26 2023 16:30:17 %S A189195 256,65536,3450100,166552852,5878642448,203562575017,6541724250668, %T A189195 209311662962608,6564303642825447,205436602739842458, %U A189195 6391004867571530548,198584429070400680915,6158498206342385810146,190869078020765592228428 %N A189195 Number of n X 8 binary arrays without the pattern 0 0 1 vertically or antidiagonally. %C A189195 Column 8 of A189196. %H A189195 R. H. Hardin, <a href="/A189195/b189195.txt">Table of n, a(n) for n = 1..200</a> %e A189195 Some solutions for 3 X 8 %e A189195 ..0..0..0..0..0..1..1..1....0..0..0..0..0..1..0..0....0..0..0..0..1..0..1..1 %e A189195 ..1..1..1..1..0..1..1..1....1..1..1..1..1..1..1..1....0..1..1..1..0..1..1..1 %e A189195 ..0..0..0..1..0..0..0..0....0..1..0..0..0..0..0..1....0..0..1..0..1..0..1..1 %Y A189195 Cf. A189196. %K A189195 nonn %O A189195 1,1 %A A189195 _R. H. Hardin_, Apr 18 2011