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 A284110 #6 Apr 05 2020 22:30:42 %S A284110 10,160,1230,80200,905327,61595318,835390074,51786529350,809052347723, %T A284110 45439256969227,794944298301218,40943771868824816,785978026788227426, %U A284110 37601651099754921818,779704805295540859956,35038029006397610068684 %N A284110 Number of n X 5 0..1 arrays with the number of 1's king-move adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero. %C A284110 Column 5 of A284113. %H A284110 R. H. Hardin, <a href="/A284110/b284110.txt">Table of n, a(n) for n = 1..89</a> %e A284110 Some solutions for n=4 %e A284110 ..0..1..0..1..1. .0..1..0..1..0. .0..0..1..1..0. .0..1..1..0..1 %e A284110 ..1..1..1..1..0. .1..0..1..1..0. .0..1..1..0..1. .0..0..1..0..1 %e A284110 ..0..0..0..1..0. .1..0..0..1..0. .1..0..0..0..1. .0..0..1..0..1 %e A284110 ..0..1..0..1..0. .0..1..1..1..0. .0..1..0..1..1. .0..0..1..1..0 %Y A284110 Cf. A284113. %K A284110 nonn %O A284110 1,1 %A A284110 _R. H. Hardin_, Mar 20 2017