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

%I #4 May 31 2018 09:05:08

%S 1,26,27,64,137,271,656,1414,3251,7823,17334,40796,93604,216821,

%T 501777,1167670,2698662,6270487,14570871,33832392,78619380,182859215,

%U 425198247,989053517,2302010385,5357492695,12472512027,29043019534,67636886076

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

%C Column 5 of A305360.

%H R. H. Hardin, <a href="/A305357/b305357.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305360.

%K nonn

%O 1,2

%A _R. H. Hardin_, May 31 2018