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A208282 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically 1

%I #7 Dec 18 2015 18:18:03

%S 2,16,102,984,9900,119580,1604862,24229696,403795242,7388858420,

%T 147219127000,3175214941800,73720244775658,1833809960513104,

%U 48667824127404150,1372862920890984032,41025768742532649684

%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically

%C Diagonal of A208287

%H R. H. Hardin, <a href="/A208282/b208282.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 25 2012

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)