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A296018 Number of nX7 0..1 arrays with each 1 adjacent to 1 or 4 king-move neighboring 1s. 1

%I #4 Dec 02 2017 21:50:58

%S 13,330,2319,26865,341979,3547681,40196846,459874052,5101988967,

%T 57424385093,646799719926,7252774856538,81512044070342,

%U 916095800061623,10289287400808766,115605932064298664,1298878810224082958

%N Number of nX7 0..1 arrays with each 1 adjacent to 1 or 4 king-move neighboring 1s.

%C Column 7 of A296019.

%H R. H. Hardin, <a href="/A296018/b296018.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296019.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 2017

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Last modified September 3 05:18 EDT 2024. Contains 375649 sequences. (Running on oeis4.)