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A317700 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Aug 04 2018 20:17:23

%S 1,82,851,20235,468002,11013057,261020405,6206695998,147728990014,

%T 3517979870158,83793302100665,1995995263130736,47547157897887346,

%U 1132650102102214367,26981709208286690846,642753107156924487864

%N Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 5 of A317703.

%H R. H. Hardin, <a href="/A317700/b317700.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A317700/a317700.txt">Empirical recurrence of order 87</a>

%F Empirical recurrence of order 87 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317703.

%K nonn

%O 1,2

%A _R. H. Hardin_, Aug 04 2018

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Last modified April 25 09:56 EDT 2024. Contains 371967 sequences. (Running on oeis4.)