0,1
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.
Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.
Sequence in context: A051384 A015336 A203912 * A204744 A204413 A204789
Adjacent sequences: A033531 A033532 A033533 * A033535 A033536 A033537
nonn
Per Hakan Lundow (phl(AT)theophys.kth.se)