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A316542 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 06 2018 12:25:35

%S 16,64,187,568,4219,19819,85583,452386,2248258,10683960,53021058,

%T 262380806,1279454090,6288355637,30965350526,151903390611,

%U 745956024380,3666614206098,18007858418196,88444652958379,434517915090590

%N Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A316545.

%H R. H. Hardin, <a href="/A316542/b316542.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316545.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 06 2018

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Last modified July 21 18:17 EDT 2024. Contains 374475 sequences. (Running on oeis4.)