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A204757 Number of (n+1)X3 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

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

%S 3677,38553,132787,1457775,5791161,57594105,251988905,2302211093,

%T 10869045681,92799984319,465729837083,3767749896601,19865081357281,

%U 153946658146847,844718265941069,6325322419263953,35848619928498487

%N Number of (n+1)X3 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 2 of A204763

%H R. H. Hardin, <a href="/A204757/b204757.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 18 2012

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Last modified June 24 17:38 EDT 2024. Contains 373686 sequences. (Running on oeis4.)