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A304477 Number of nX6 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 10:47:45

%S 32,184,202,869,2870,11079,35462,133597,471114,1710896,6061565,

%T 21980834,78585187,283683806,1018847251,3672874235,13208879435,

%U 47594094190,171327070438,617223088503,2222719304061,8007207853534,28840761497354

%N Number of nX6 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 6 of A304479.

%H R. H. Hardin, <a href="/A304477/b304477.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304479.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 13 2018

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)