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 A240787 #7 Jul 23 2025 11:07:44 %S A240787 32,361,2187,15332,106411,746346,5228820,36701371,257576121, %T A240787 1808280738,12694886397,89128797051,625760780302,4393427783962, %U A240787 30846025087421,216568722650785,1520521061879683,10675526309057060,74952512684267110 %N A240787 Number of 6Xn 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order. %C A240787 Row 6 of A240783 %H A240787 R. H. Hardin, <a href="/A240787/b240787.txt">Table of n, a(n) for n = 1..210</a> %H A240787 R. H. Hardin, <a href="/A240787/a240787.txt">Empirical recurrence of order 94</a> %F A240787 Empirical recurrence of order 94 (see link above) %e A240787 Some solutions for n=4 %e A240787 ..0..1..0..1....0..1..0..1....0..1..0..1....0..1..0..1....0..1..0..0 %e A240787 ..0..0..1..0....1..0..1..1....0..1..0..1....0..1..0..1....0..1..0..0 %e A240787 ..0..0..1..0....1..0..1..0....0..1..0..0....1..0..1..1....0..1..0..0 %e A240787 ..0..0..1..1....0..1..1..0....1..1..0..0....0..1..1..1....0..1..0..1 %e A240787 ..0..0..1..1....1..1..0..0....1..0..0..1....0..1..1..0....1..1..0..1 %e A240787 ..1..0..1..0....1..1..0..0....1..0..1..0....0..1..1..0....1..1..0..1 %K A240787 nonn %O A240787 1,1 %A A240787 _R. H. Hardin_, Apr 12 2014