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A284770 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1. 1

%I #6 Apr 05 2020 23:04:43

%S 28,2896,298003,31677488,3595841703,415218866820,48994677634459,

%T 5840008221148574,702889504624919147,85151294479167806690,

%U 10373863251897460544155,1269424721127000908485982

%N Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.

%C Column 7 of A284771.

%H R. H. Hardin, <a href="/A284770/b284770.txt">Table of n, a(n) for n = 1..19</a>

%e Some solutions for n=2

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

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

%Y Cf. A284771.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 02 2017

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Last modified July 15 14:56 EDT 2024. Contains 374333 sequences. (Running on oeis4.)