A283782 - OEIS

A283782

Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

%I #4 Mar 16 2017 12:20:32

%S 0,564,43793,2343698,109281786,4572654404,179632502674,6737192690688,

%T 244126676935480,8613145295952112,297460336039982839,

%U 10094963044660987046,337635823136300866898,11153955582473959225840

%N Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

%C Column 6 of A283784.

%H R. H. Hardin, <a href="/A283782/b283782.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..0..0..0..0..1..1. .1..0..1..1..1..1. .1..0..0..0..0..0. .1..0..0..1..0..1

%e ..1..1..0..0..1..1. .0..0..0..0..1..0. .1..1..1..0..1..0. .1..1..0..1..0..0

%e ..1..0..1..0..1..0. .0..1..1..1..0..0. .0..1..1..0..0..0. .1..0..1..1..1..0

%Y Cf. A283784.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 16 2017