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 A279703 #6 Apr 21 2020 12:56:00 %S A279703 1,2,11,125,3245,187484,24137862,6837220721,4307342174510, %T A279703 5994530717421378,18451958514090493382 %N A279703 Number of n X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. %C A279703 Diagonal of A279709. %e A279703 Some solutions for n=4 %e A279703 ..0..1..0..1. .0..1..0..1. .0..1..0..0. .0..1..0..1. .0..1..1..0 %e A279703 ..0..1..0..0. .1..0..0..1. .0..1..1..1. .0..1..1..0. .0..0..1..0 %e A279703 ..0..1..1..0. .1..0..1..0. .1..0..0..0. .0..0..1..1. .1..0..0..1 %e A279703 ..0..0..1..0. .1..0..1..0. .0..1..1..0. .1..0..0..1. .1..1..0..1 %Y A279703 Cf. A279709. %K A279703 nonn %O A279703 1,2 %A A279703 _R. H. Hardin_, Dec 17 2016