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A304056 Number of nX6 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. 1

%I #4 May 05 2018 15:20:16

%S 5,165,60,427,1641,3434,13624,69126,260517,1102813,5505522,26118011,

%T 119187870,598862144,2969266285,14210413187,71450044070,357152196394,

%U 1748126910838,8785168669520,43952589152798,217501253798963

%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

%C Column 6 of A304058.

%H R. H. Hardin, <a href="/A304056/b304056.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304058.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 05 2018

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Last modified April 25 11:30 EDT 2024. Contains 371967 sequences. (Running on oeis4.)