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A298657 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I

%S 3,23,23,85,177,431,876,2137,5002,11687,27591,64253,150967,353682,

%T 830580,1954490,4575013,10742553,25221766,59150366,138829820,

%U 325959550,764905062,1795278490,4214144288,9890202526,23212413440,54483362577

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A298660.

%H R. H. Hardin, <a href="/A298657/b298657.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298660.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 24 2018

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Last modified February 29 09:41 EST 2020. Contains 332355 sequences. (Running on oeis4.)