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Number of n X 6 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1's.
1

%I #6 Sep 11 2023 21:34:21

%S 1,17,135,590,5878,74534,732736,8605648,108002628,1278477660,

%T 15486707196,190955213876,2326446544887,28396244079395,

%U 348166722264565,4259251865365556,52094507515184359,637838654849421958

%N Number of n X 6 0..1 arrays with each 1 adjacent to 3, 4 or 6 king-move neighboring 1's.

%C Column 6 of A297020.

%H R. H. Hardin, <a href="/A297018/b297018.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A297020.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 23 2017