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 A188745 #7 Sep 04 2022 22:51:06 %S A188745 128,16384,371641,20544154,1127318294,47325959200,2307086087740, %T A188745 111642244016936,5198138560322655,247778079713183493, %U A188745 11784953664767609408,557503350633218495686,26469014360403565983659 %N A188745 Number of n X 7 binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally. %C A188745 Column 7 of A188747. %H A188745 R. H. Hardin, <a href="/A188745/b188745.txt">Table of n, a(n) for n = 1..200</a> %e A188745 Some solutions for 3 X 7 %e A188745 ..0..0..0..0..1..0..1....0..0..0..0..0..1..0....0..0..0..0..0..1..0 %e A188745 ..1..1..1..0..1..1..0....1..0..0..0..1..0..1....1..0..1..1..0..0..0 %e A188745 ..1..1..1..0..0..0..0....0..0..1..0..0..0..0....1..0..1..0..0..0..0 %Y A188745 Cf. A188747. %K A188745 nonn %O A188745 1,1 %A A188745 _R. H. Hardin_, Apr 09 2011