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A204756 Number of (n+1)X2 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

%I

%S 1175,3677,11081,38789,131613,469999,1652217,5928687,21125147,

%T 75994701,272583363,982624719,3538616555,12780460757,46152949595,

%U 166980292941,604289827009,2189737689861,7938299557587,28806261483751,104582844671167

%N Number of (n+1)X2 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 1 of A204763

%H R. H. Hardin, <a href="/A204756/b204756.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..0..5....3..4....1..4....4..1....2..1....0..1....3..3....1..2....2..4....0..5

%e ..4..5....1..5....3..3....3..5....4..1....4..2....2..2....1..5....0..5....1..4

%e ..4..0....3..4....2..3....4..1....2..1....0..1....4..2....1..2....2..3....1..1

%e ..3..5....4..1....3..3....3..5....2..2....4..4....0..3....1..5....0..5....0..5

%e ..1..5....3..4....0..5....4..1....0..3....0..1....4..2....1..2....2..0....1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 18 2012

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Last modified September 22 15:04 EDT 2021. Contains 347607 sequences. (Running on oeis4.)