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A204785 Number of (n+1)X3 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

%I

%S 13555,224843,793645,14627079,59657161,986079019,4471465369,

%T 66978872631,331873877771,4574719987785,24439406840701,

%U 314037243688927,1789071497341345,21658929764256197,130381268078683017

%N Number of (n+1)X3 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 2 of A204791

%H R. H. Hardin, <a href="/A204785/b204785.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 19 2012

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Last modified July 25 19:34 EDT 2021. Contains 346291 sequences. (Running on oeis4.)