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A317158 Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 22 2018 15:55:05

%S 13,125,165,1245,9686,69701,887617,10940249,123485236,1595521378,

%T 20618723023,255809952162,3259906353650,41808594857313,

%U 529860834412256,6742319644440481,86065457865270169,1095494026766384304

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317160.

%H R. H. Hardin, <a href="/A317158/b317158.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317160.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 22 2018

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Last modified April 12 20:37 EDT 2024. Contains 371637 sequences. (Running on oeis4.)