# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a286977 Showing 1-1 of 1 %I A286977 #6 Apr 05 2020 23:30:23 %S A286977 1,520,32253,1853532,108110791,6394436704,382399996325,23061514189084, %T A286977 1399727072882973,85393260809630392,5231506248052898794, %U A286977 321628304145152717720,19832505642478450579224,1226074610187600024235498 %N A286977 Number of n X 6 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1. %C A286977 Column 6 of A286979. %H A286977 R. H. Hardin, Table of n, a(n) for n = 1..38 %e A286977 Some solutions for n=3 %e A286977 ..1..1..0..1..0..0. .0..1..1..1..0..0. .0..1..1..0..0..0. .1..0..0..0..1..0 %e A286977 ..1..0..0..1..0..0. .0..0..0..1..0..0. .1..0..0..0..0..0. .0..0..0..1..1..0 %e A286977 ..1..1..0..0..0..0. .0..0..0..0..1..0. .0..0..0..0..0..0. .0..1..1..1..0..0 %Y A286977 Cf. A286979. %K A286977 nonn %O A286977 1,2 %A A286977 _R. H. Hardin_, May 17 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE