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A299720 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 17 2018 10:41:33

%S 1,1192,33804,2501312,174287007,12889348273,971255866215,

%T 73433529818762,5581654300729422,424650044923971872,

%U 32336302707253949948,2463144123049504957119,187653550017667556025377

%N Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299721.

%H R. H. Hardin, <a href="/A299720/b299720.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299721.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 17 2018

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Last modified August 8 21:17 EDT 2024. Contains 375023 sequences. (Running on oeis4.)