A033530 - OEIS

%I #9 Dec 09 2013 11:15:24

%S 1,131,90040,49793133,28579431833,16294017491392,9303034425177393,

%T 5309783310438438755,3030852157018381983096,1729989715204411185894125,

%U 987471788038820650012763705,563644449821238971691233574464,321725839534452657823357410831785

%N Number of matchings in graph P_{3} X P_{3} X P_{n}.

%D Per Hakan Lundow, "Computation of matching polynomials and the number of 1-factors in polygraphs", Research reports, No 12, 1996, Department of Mathematics, Umea University.

%H Alois P. Heinz, <a href="/A033530/b033530.txt">Table of n, a(n) for n = 0..200</a>

%H Per Hakan Lundow, <a href="http://www.theophys.kth.se/~phl/Text/1factors2.ps.gz">Enumeration of matchings in polygraphs</a>, 1998.

%K nonn

%O 0,2

%A _Per H. Lundow_