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A317523 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 30 2018 11:39:05

%S 32,2048,115446,6475106,364882328,20564214798,1158965686460,

%T 65318143510572,3681268128789010,207472769534191084,

%U 11692968278637232258,659004591348743396480,37140873154579069191626,2093224352223179964338280

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317525.

%H R. H. Hardin, <a href="/A317523/b317523.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A317523/a317523.txt">Empirical recurrence of order 59</a>

%F Empirical recurrence of order 59 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317525.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 30 2018

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Last modified April 16 00:00 EDT 2024. Contains 371696 sequences. (Running on oeis4.)