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A204728 Number of (n+1)X5 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero 1

%I

%S 15688,353626,2122560,45026614,304649012,6063334774,44356355508,

%T 831511885930,6485389220808,115070312319692,948444994398864,

%U 16019519036868662,138571010386295858,2240817100121115226

%N Number of (n+1)X5 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero

%C Column 4 of A204732

%H R. H. Hardin, <a href="/A204728/b204728.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 18 2012

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Last modified October 21 06:53 EDT 2021. Contains 348143 sequences. (Running on oeis4.)