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A204788 Number of (n+1)X6 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

%I

%S 688431,59657161,708088685,41778004243,720594943717,32915600155409,

%T 699103684825857,27409969099764031,657930562520525815,

%U 23569034319280896259,608369271192524430611,20662110174340562886959

%N Number of (n+1)X6 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 5 of A204791

%H R. H. Hardin, <a href="/A204788/b204788.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=4

%e ..3..3..5..5..5..6....7..0..7..3..3..0....1..7..2..4..0..4....7..5..7..7..7..1

%e ..2..3..0..3..0..3....2..3..7..0..7..7....4..0..4..6..7..2....7..2..7..0..7..6

%e ..3..3..5..7..5..3....7..0..7..3..2..1....2..7..2..4..0..4....7..5..7..7..7..1

%e ..2..3..0..3..0..3....2..3..7..0..7..7....4..0..4..6..7..7....0..7..0..7..0..7

%e ..1..6..5..0..5..2....7..0..7..3..0..3....6..7..2..4..0..4....7..2..7..5..7..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 19 2012

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Last modified September 26 16:15 EDT 2021. Contains 347670 sequences. (Running on oeis4.)