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A316288 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 28 2018 15:33:58

%S 64,719,2840,12454,164734,1262767,10464990,101136854,901515338,

%T 8107946080,74207569963,676120379468,6164560394025,56286220002853,

%U 514605118915259,4706732283427548,43060933136041854,394246533554203877

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A316289.

%H R. H. Hardin, <a href="/A316288/b316288.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316289.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 28 2018

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Last modified September 15 02:47 EDT 2024. Contains 375930 sequences. (Running on oeis4.)