A305486 - OEIS

%I #4 Jun 02 2018 09:00:45

%S 3,70,137,195,2094,7007,16464,91350,348956,1047508,4508452,17741919,

%T 60248568,237122355,928231841,3353015080,12819796262,49662120190,

%U 184865377971,701774848637,2697667496175,10183982612578,38658538187132

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305489.

%H R. H. Hardin, <a href="/A305486/b305486.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A305486/a305486.txt">Empirical recurrence of order 97</a>

%F Empirical recurrence of order 97 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305489.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 02 2018