# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a283948 Showing 1-1 of 1 %I A283948 #4 Mar 18 2017 12:23:58 %S A283948 0,408,69468,4242700,241796070,13010689912,669777003928, %T A283948 33569301548620,1648776677140184,79729758214875372, %U A283948 3808601116917731110,180135397053029043408,8450230315310614813812,393679533146957194152168 %N A283948 Number of nX6 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element. %C A283948 Column 6 of A283950. %H A283948 R. H. Hardin, Table of n, a(n) for n = 1..210 %e A283948 Some solutions for n=3 %e A283948 ..1..1..1..0..1..0. .1..1..1..1..1..0. .0..1..1..1..1..0. .1..0..0..1..1..0 %e A283948 ..1..0..1..0..0..1. .1..0..1..0..0..1. .0..0..1..0..1..1. .1..0..1..0..1..1 %e A283948 ..0..0..1..1..1..0. .0..0..1..1..0..0. .0..0..1..0..1..1. .1..1..1..0..1..1 %Y A283948 Cf. A283950. %K A283948 nonn %O A283948 1,2 %A A283948 _R. H. Hardin_, Mar 18 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE