A033521 Number of matchings in graph C_{9} X P_{n}.

1, 76, 36626, 13775700, 5392866995, 2099687534810, 818177759586592, 318778982954630760, 124205035822005824254, 48393567952045732290238, 18855421270525299234217319, 7346573263558160357598269172, 2862420221714879808794571247043

Offset: 0

Author

Per H. Lundow

Keywords

• nonn

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

• Alois P. Heinz, Table of n, a(n) for n = 0..200
• Per Hakan Lundow, Enumeration of matchings in polygraphs, 1998.

Crossrefs

Row 9 of A287428.