# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a283954 Showing 1-1 of 1 %I A283954 #4 Mar 18 2017 12:28:42 %S A283954 0,0,8184,283208,8244557,241796070,6763514843,182198176994, %T A283954 4825164796310,125933665031272,3244468947083396,82767450195612832, %U A283954 2094459557648313968,52635795570355253222,1315036944531836311688,32688961006164835305772 %N A283954 Number of 5Xn 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 A283954 Row 5 of A283950. %H A283954 R. H. Hardin, Table of n, a(n) for n = 1..210 %e A283954 Some solutions for n=3 %e A283954 ..1..0..1. .1..0..1. .1..1..1. .1..1..1. .1..1..1. .1..1..0. .1..0..1 %e A283954 ..1..1..0. .1..1..1. .0..0..1. .0..0..1. .0..0..0. .0..0..0. .1..0..0 %e A283954 ..0..1..1. .0..1..0. .1..0..1. .1..1..0. .1..1..1. .1..1..1. .0..0..1 %e A283954 ..1..0..0. .0..1..1. .0..1..1. .1..0..1. .1..1..0. .1..1..0. .0..1..1 %e A283954 ..0..1..0. .1..0..0. .1..1..0. .1..0..1. .0..1..1. .1..1..1. .1..0..1 %Y A283954 Cf. A283950. %K A283954 nonn %O A283954 1,3 %A A283954 _R. H. Hardin_, Mar 18 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE