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A298962 Number of nX7 0..1 arrays with every element equal to 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 30 2018 13:13:59

%S 0,8,8,75,230,1144,4263,18517,75262,317141,1307739,5446889,22584896,

%T 93917334,389965508,1620245230,6729536166,27956779018,116131464818,

%U 482427395426,2004019363266,8324893628475,34582253578090,143657911533546

%N Number of nX7 0..1 arrays with every element equal to 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A298963.

%H R. H. Hardin, <a href="/A298962/b298962.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298963.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 30 2018

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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)