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A305012 Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I

%S 3,51,99,255,2715,9499,30457,225009,1046863,4428355,25786862,

%T 133489800,644632918,3500846702,18523401621,94736004178,504816486286,

%U 2678501833047,14004203659303,74284132555049,393952194673461,2076786525949422

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305015.

%H R. H. Hardin, <a href="/A305012/b305012.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305015.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 23 2018

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Last modified September 20 03:47 EDT 2021. Contains 347577 sequences. (Running on oeis4.)