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 A297767 #4 Jan 05 2018 19:04:08 %S A297767 1,31,5685,90727,1456855,59707529,2301783905,66213677238, %T A297767 1944129099097,63049230136397,2027401928062934,63102413279467578, %U A297767 1970605911207789423,62210056801807436056,1961461031452058351683,61622985760713701597898 %N A297767 Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s. %C A297767 Row 6 of A297762. %H A297767 R. H. Hardin, <a href="/A297767/b297767.txt">Table of n, a(n) for n = 1..210</a> %e A297767 Some solutions for n=4 %e A297767 ..1..1..1..0. .0..0..1..0. .0..0..1..1. .0..1..1..0. .1..1..1..0 %e A297767 ..1..1..1..0. .0..1..1..1. .0..0..1..1. .0..0..1..1. .1..1..0..0 %e A297767 ..0..0..0..0. .0..1..0..1. .1..1..1..1. .0..1..0..0. .1..1..0..0 %e A297767 ..0..0..1..1. .1..1..1..0. .0..1..0..0. .0..0..1..0. .0..0..0..0 %e A297767 ..0..0..1..1. .0..0..1..1. .0..0..1..1. .0..1..1..1. .0..0..1..1 %e A297767 ..0..1..1..0. .0..0..0..0. .0..0..1..1. .0..1..1..0. .0..1..1..1 %Y A297767 Cf. A297762. %K A297767 nonn %O A297767 1,2 %A A297767 _R. H. Hardin_, Jan 05 2018