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 A180759 #5 Jul 22 2025 08:29:00 %S A180759 0,34,148,6521,197883,6925085,232041425,7988200496,273193577866, %T A180759 9371551715962,321126765178608,11008960419802432,377391950209233884, %U A180759 12938484121557779809,443585080271258369878,15208220842498216076445 %N A180759 Half the number of nX10 binary arrays with each element equal to at least two neighbors. %C A180759 Column 10 of A180760 %H A180759 R. H. Hardin, <a href="/A180759/b180759.txt">Table of n, a(n) for n=1..37</a> %K A180759 nonn %O A180759 1,2 %A A180759 _R. H. Hardin_ Sep 20 2010