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A316180 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 25 2018 17:47:25

%S 16,420,2665,21825,168051,1361115,11056918,90607484,744476711,

%T 6128725337,50505657943,416410008391,3434291565162,28328056127096,

%U 233686613328253,1927836538740757,15904394556151648,131210860066827373

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

%C Column 5 of A316183.

%H R. H. Hardin, <a href="/A316180/b316180.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A316180/a316180.txt">Empirical recurrence of order 74</a>

%F Empirical recurrence of order 74 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316183.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 25 2018

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Last modified May 11 07:10 EDT 2024. Contains 372388 sequences. (Running on oeis4.)