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A183260 Number of nX5 binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies 1

%I #5 Mar 31 2012 12:35:50

%S 7,59,1074,23285,526941,12358457,294747516,7119707510,173610143327,

%T 4263303128795,105283377755501,2612030456816753,65051981440720321,

%U 1625345752707630215,40722394587973397684,1022732537851788857648

%N Number of nX5 binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies

%C Column 5 of A183262

%H R. H. Hardin, <a href="/A183260/b183260.txt">Table of n, a(n) for n = 1..111</a>

%e Some solutions for 4X5

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 03 2011

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Last modified August 21 10:02 EDT 2024. Contains 375345 sequences. (Running on oeis4.)