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Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.
1

%I #8 May 07 2018 08:03:30

%S 21,103,89,244,582,1321,2945,6333,13315,28932,63006,134021,284831,

%T 607277,1291893,2755806,5876374,12482965,26539285,56520687,120314557,

%U 256086726,545101754,1160070321,2469739659,5259410891,11198740071,23845751230

%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.

%C Column 7 of A304133.

%H R. H. Hardin, <a href="/A304132/b304132.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A304132/a304132.txt">Empirical recurrence of order 79</a>

%F Empirical recurrence of order 79 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A304133.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 07 2018