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 A326104 #4 Jun 06 2019 07:55:39 %S A326104 64,5536,181227,7140349,285501774,11436374461,457515856087, %T A326104 18304957522469,732434052866467,29307016828624452,1172658992868162369, %U A326104 46921473708684800557,1877464197930752217833,75122790849233220662502 %N A326104 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. %C A326104 Column 7 of A326105. %H A326104 R. H. Hardin, <a href="/A326104/b326104.txt">Table of n, a(n) for n = 1..210</a> %e A326104 Some solutions for n=5 %e A326104 ..0..0..0..0..1..0..1. .0..0..0..1..0..0..1. .0..0..0..1..0..1..0 %e A326104 ..0..1..0..1..1..1..1. .0..1..0..0..1..1..0. .0..1..0..0..1..0..1 %e A326104 ..0..0..1..0..0..0..0. .0..0..1..0..0..1..1. .0..0..1..0..1..1..1 %e A326104 ..0..1..0..1..0..1..0. .0..1..0..1..0..0..1. .0..1..0..0..0..0..0 %e A326104 ..0..0..0..1..1..0..0. .0..0..1..1..0..1..1. .0..0..1..1..1..1..0 %Y A326104 Cf. A326105. %K A326104 nonn %O A326104 1,1 %A A326104 _R. H. Hardin_, Jun 06 2019