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A306051 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 18 2018 07:38:45

%S 32,293,1261,6604,66149,554682,3914486,34263459,301965791,2464748721,

%T 20868384434,180078276384,1523011212543,12909110771761,

%U 110238004393252,937966302675906,7971252754218173,67878006986167166,577819881746426530

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A306053.

%H R. H. Hardin, <a href="/A306051/b306051.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..0..1..1..1..0. .0..0..0..0..0..1. .0..0..0..0..1..1

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

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

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

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

%Y Cf. A306053.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 18 2018

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Last modified August 30 03:24 EDT 2024. Contains 375523 sequences. (Running on oeis4.)