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A304547 Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero. 2

%I

%S 1,24,60,418,2186,12281,72713,423041,2465234,14485954,84866473,

%T 497508155,2918999870,17121301618,100431971271,589185472211,

%U 3456348339399,20276248723814,118949602782537,697809509847641,4093656522150681

%N Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

%C Column 4 of A304551.

%H R. H. Hardin, <a href="/A304547/b304547.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A304547/a304547.txt">Empirical recurrence of order 70</a>

%F Empirical recurrence of order 70 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304551.

%K nonn

%O 1,2

%A _R. H. Hardin_, May 14 2018

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Last modified May 25 00:03 EDT 2022. Contains 354047 sequences. (Running on oeis4.)