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A317426 Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 27 2018 22:01:57

%S 8,53,75,279,1097,2891,8887,30029,89848,274792,882160,2721361,8383857,

%T 26399095,82085290,254251923,794713508,2475311210,7689325828,

%U 23970460330,74669710389,232271011634,723429518338,2253142345374,7012829125173

%N Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A317429.

%H R. H. Hardin, <a href="/A317426/b317426.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317429.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 27 2018

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)