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A284454 Number of n X 7 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1. 1

%I #6 Apr 05 2020 23:01:17

%S 28,0,278315,12957944,3478866516,197373621124,45913351929099,

%T 3020610942888634,635171432700031740,46935468157115829048,

%U 9070472121517777538083,735727339860385496580626

%N Number of n X 7 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.

%C Column 7 of A284455.

%H R. H. Hardin, <a href="/A284454/b284454.txt">Table of n, a(n) for n = 1..28</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A284455.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 27 2017

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Last modified August 29 06:09 EDT 2024. Contains 375510 sequences. (Running on oeis4.)