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 A232322 #10 Jul 23 2025 07:18:47 %S A232322 233,12649,780922,62897985,5055954492,400571676322,31805180533255, %T A232322 2525538536966177,200540005858196485,15923668252055955019, %U A232322 1264405925465429453283,100399102965152775485203 %N A232322 Number of (6+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero. %C A232322 Row 6 of A232316 %H A232322 R. H. Hardin, <a href="/A232322/b232322.txt">Table of n, a(n) for n = 1..210</a> %e A232322 Some.solutions.for.n=2 %e A232322 ..0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..1....0..0..1 %e A232322 ..0..1..0....1..1..1....0..1..0....1..1..0....0..1..1....1..1..1....0..1..1 %e A232322 ..0..0..0....1..1..1....1..0..1....1..0..1....1..0..0....1..1..1....1..1..0 %e A232322 ..0..1..1....0..0..1....0..1..0....1..1..0....0..1..1....0..0..1....0..0..1 %e A232322 ..1..0..1....1..1..1....1..0..1....0..0..1....0..0..1....0..1..0....1..1..0 %e A232322 ..0..1..1....1..0..0....0..1..0....1..1..1....0..1..1....1..0..0....0..0..0 %e A232322 ..1..1..1....1..1..1....0..0..0....1..1..1....1..0..0....1..1..1....0..1..1 %K A232322 nonn %O A232322 1,1 %A A232322 _R. H. Hardin_, Nov 22 2013