A033531 Number of matchings in graph P_{3} X P_{4} X P_{n}.

1, 823, 5493583, 28579431833, 154620656140976, 831415352314053207, 4475746196648151844135, 24088698990102061728597981, 129653063594088631745065442153, 697826352881007761016861345617984, 3755891812799886342646421870514820641

Offset

0,2

References

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.

Links

Table of n, a(n) for n=0..10.

Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.

Crossrefs

Sequence in context: A326817 A271044 A252539 * A088360 A057002 A247922

Adjacent sequences: A033528 A033529 A033530 * A033532 A033533 A033534

Keyword

nonn

Author

Per H. Lundow

Status

approved