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A298166 Number of nX7 0..1 arrays with every element equal to 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 14 2018 09:00:29

%S 0,8,8,18,32,133,624,4525,22143,189512,1055639,8706804,56180515,

%T 430152862,2980641029,22009904805,156293859632,1140069517515,

%U 8166045697940,59256213868695,426194534840118,3084307811815052

%N Number of nX7 0..1 arrays with every element equal to 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A298167.

%H R. H. Hardin, <a href="/A298166/b298166.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=8

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

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

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

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

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

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

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

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

%Y Cf. A298167.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 14 2018

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)