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A300114 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 25 2018 06:31:14

%S 8,99,629,12669,212470,4293657,87633085,1730369641,35186245661,

%T 713786361249,14393607529808,291188464459322,5893955544655595,

%U 119194619149427574,2410737833832521715,48767679910947958121

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A300115.

%H R. H. Hardin, <a href="/A300114/b300114.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300115.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 25 2018

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Last modified April 25 13:02 EDT 2024. Contains 371969 sequences. (Running on oeis4.)