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A298579 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 22 2018 06:27:20

%S 3,23,47,237,765,3284,14482,53272,215514,912084,3648248,14687047,

%T 60203513,245335061,994616646,4046916244,16494072611,67083379987,

%U 272827461209,1110711231219,4520415462039,18391763438584,74846658443216

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A298582.

%H R. H. Hardin, <a href="/A298579/b298579.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298582.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 22 2018

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Last modified April 23 07:42 EDT 2024. Contains 371905 sequences. (Running on oeis4.)