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A204726 Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

%I #5 Mar 31 2012 12:37:03

%S 1624,12744,44726,353626,1425462,10332706,45388048,307057212,

%T 1435551124,9233564740,45214143964,280355783930,1421151419140,

%U 8581104455222,44642397960012,264431250310716,1402840195850906,8195345840290280

%N Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 2 of A204732

%H R. H. Hardin, <a href="/A204726/b204726.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 18 2012

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)