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A304476 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero. 1

%I #4 May 13 2018 10:47:06

%S 16,64,94,297,931,2870,8058,25040,76568,231646,698547,2127306,6445956,

%T 19552446,59312328,179989186,545864508,1655917962,5023513454,

%U 15239822168,46229536379,140240525936,425432765173,1290586351293,3915080833618

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

%C Column 5 of A304479.

%H R. H. Hardin, <a href="/A304476/b304476.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304479.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 13 2018

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Last modified August 21 22:08 EDT 2024. Contains 375353 sequences. (Running on oeis4.)