# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a286978 Showing 1-1 of 1 %I A286978 #6 Apr 05 2020 23:31:07 %S A286978 3,2088,238532,27938670,3229944132,382399996325,45587718323826, %T A286978 5491408595796062,665386690317576640,81085002249528800607, %U A286978 9923283116879850553806,1218979761697887011274578 %N A286978 Number of n X 7 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 A286978 Column 7 of A286979. %H A286978 R. H. Hardin, Table of n, a(n) for n = 1..16 %e A286978 Some solutions for n=2 %e A286978 ..1..0..1..0..1..0..0. .0..0..0..0..0..0..1. .0..0..1..0..0..0..0 %e A286978 ..0..0..1..0..1..0..1. .1..1..0..0..0..1..0. .0..1..1..0..1..0..1 %Y A286978 Cf. A286979. %K A286978 nonn %O A286978 1,1 %A A286978 _R. H. Hardin_, May 17 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE