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

%I #4 Jan 26 2018 08:44:12

%S 3,23,47,233,682,2603,11657,39908,149791,617528,2340328,8921969,

%T 34929827,135499003,522693251,2023538485,7856615385,30426642588,

%U 117738552981,456437251086,1768840207859,6850066781045,26539738521878,102838505746523

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

%C Column 5 of A298775.

%H R. H. Hardin, <a href="/A298772/b298772.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A298775.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2018