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 A240781 #6 Jul 23 2025 11:07:10 %S A240781 1,14,216,3033,47920,746346,11677893,182610635,2856212777,44672652785, %T A240781 698693379107,10927826665165,170915403140645,2673181219816234, %U A240781 41809560933557091,653917302030513863,10227513198350314599 %N A240781 Number of nX6 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 A240781 Column 6 of A240783 %H A240781 R. H. Hardin, <a href="/A240781/b240781.txt">Table of n, a(n) for n = 1..210</a> %e A240781 Some solutions for n=4 %e A240781 ..0..1..1..0..1..0....0..1..1..0..1..0....0..1..0..1..0..1....0..1..0..1..0..1 %e A240781 ..0..1..1..0..0..1....0..1..1..0..1..1....1..0..1..0..0..1....0..1..0..1..1..0 %e A240781 ..1..1..0..1..0..0....1..0..1..1..0..1....0..0..1..0..0..1....0..0..1..0..1..1 %e A240781 ..1..0..1..0..1..0....0..1..0..1..0..1....0..0..1..0..0..1....1..0..1..0..1..1 %K A240781 nonn %O A240781 1,2 %A A240781 _R. H. Hardin_, Apr 12 2014