A304594 - OEIS

%I #4 May 15 2018 13:17:37

%S 3,313,2207,28251,316549,3512756,39628005,447041946,5016259480,

%T 56474020081,635371155997,7145913774394,80393942132258,

%U 904388090680474,10173559797380479,114447387287786722,1287461108079193254

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

%C Column 5 of A304597.

%H R. H. Hardin, <a href="/A304594/b304594.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304597.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 15 2018