login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Number of (n+1)X3 0..3 matrices with each 2X2 permanent equal
1

%I #5 Aug 11 2014 22:45:52

%S 912,11196,110253,1777586,26732072,435788333,6995454550,113660299418,

%T 1841286621939,29886022842578,484824378387720,7867531917317145,

%U 127659230961346958,2071519909834937922,33613909177507010389

%N Number of (n+1)X3 0..3 matrices with each 2X2 permanent equal

%C Column 2 of A224975

%H R. H. Hardin, <a href="/A224969/b224969.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A224969/a224969.txt">Empirical recurrence of order 80</a>

%F Empirical recurrence of order 80 (see link above)

%e Some solutions for n=2

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

%e ..0..0..0....0..0..0....0..0..1....0..0..0....1..0..1....0..0..0....0..0..0

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 21 2013