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A305045 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero. 2

%I #4 May 24 2018 08:50:05

%S 1,49,17,17,201,137,42,5165,6357,5846,188507,395242,807954,8663043,

%T 25748810,74038793,473267062,1684410691,5713158552,28622444576,

%U 110454531459,407922983655,1823045922549,7269915840634,28075575562716

%N Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A305047.

%H R. H. Hardin, <a href="/A305045/b305045.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305047.

%K nonn

%O 1,2

%A _R. H. Hardin_, May 24 2018

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)