login
Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors.
1

%I #4 Mar 10 2017 09:30:13

%S 81,1444,42664,1094959,29377334,778500603,20707472573,550220030803,

%T 14624495679716,388675661283840,10330112591962531,274548845582551728,

%U 7296844499730463987,193932365230917334017,5154251053305056299587

%N Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors.

%C Column 7 of A283543.

%H R. H. Hardin, <a href="/A283542/b283542.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A283542/a283542.txt">Empirical recurrence of order 59</a>

%F Empirical recurrence of order 59 (see link above)

%e Some solutions for n=3

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

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

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

%Y Cf. A283543.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 10 2017