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A300087 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #6 Feb 25 2018 06:18:02

%S 13,32,6,98,533,1822,13646,64560,292356,1935206,8977877,47025964,

%T 277252018,1342509714,7412660838,41080319424,209198027664,

%U 1166155310631,6311894489681,33391174168101,185469661266839,1001589651401307

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A300089.

%H R. H. Hardin, <a href="/A300087/b300087.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300089.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 24 2018

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Last modified April 12 20:38 EDT 2024. Contains 371639 sequences. (Running on oeis4.)