login
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 24 2018 10:24:59

%S 16,512,12408,306767,7626768,189848373,4729712941,117851999934,

%T 2936875623336,73188908936110,1823941673502397,45454643346741044,

%U 1132781991907637247,28230245358586758157,703530728472049344422

%N Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 5 of A303456.

%H R. H. Hardin, <a href="/A303459/b303459.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A303459/a303459.txt">Empirical recurrence of order 68</a>

%F Empirical recurrence of order 68 (see link above)

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

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

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

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

%Y Cf. A303456.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 24 2018