A303893 - OEIS

%I #4 May 02 2018 08:03:35

%S 3,313,842,7421,29479,200144,992789,5930552,32529473,183511110,

%T 1040095115,5814425752,32991537449,185215371545,1046962946963,

%U 5898040401117,33274465102765,187679674103195,1058350295231955

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.

%C Column 5 of A303896.

%H R. H. Hardin, <a href="/A303893/b303893.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A303893/a303893.txt">Empirical recurrence of order 92</a>

%F Empirical recurrence of order 92 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303896.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 02 2018