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A297857 Number of nX7 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 07 2018 10:41:16

%S 8,95,53,145,130,146,181,289,294,594,711,1167,1681,2374,3827,6129,

%T 8841,14042,20888,31498,51865,82514,125083,194859,300754,471476,

%U 758967,1198480,1863140,2913216,4550700,7227150,11533654,18154246,28482607

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

%C Column 7 of A297858.

%H R. H. Hardin, <a href="/A297857/b297857.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A297858.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 07 2018

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Last modified April 16 10:24 EDT 2024. Contains 371700 sequences. (Running on oeis4.)