|
%I #4 Apr 18 2018 12:41:53
%S 0,361,17229,523578,22292709,906385523,37220475492,1524895247525,
%T 62554206264579,2565661994238856,105233833702602217,
%U 4316305100898465120,177039165517795607628,7261509407874389623218,297840901987105112478569
%N Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Row 6 of A303102.
%H R. H. Hardin, <a href="/A303106/b303106.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e ..0..0..0..1..1. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..1..0
%e ..1..0..1..1..1. .1..1..1..1..1. .0..1..0..1..1. .1..1..1..0..0
%e ..0..1..0..0..1. .0..0..0..0..0. .0..0..1..1..0. .1..0..1..1..1
%e ..0..1..0..1..0. .1..1..0..1..1. .1..1..0..0..1. .0..1..1..0..0
%e ..0..0..1..0..0. .1..1..0..0..1. .1..1..1..0..0. .0..0..0..1..1
%Y Cf. A303102.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 18 2018
| 