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A049507 Number of perfect matchings in graph P_{6} x P_{6} x P_{n}. 2
1, 6728, 53786626921, 57248060375968384, 123115692449982216049513, 216388579168758145017797108072 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..5.

P. H. Lundow, Computation of matching polynomials and the number of 1-factors in polygraphs, Research report #12 (1996).

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

CROSSREFS

Cf. A006253, A028452, A028454.

Sequence in context: A145320 A035905 A099778 * A064160 A249463 A031642

Adjacent sequences:  A049504 A049505 A049506 * A049508 A049509 A049510

KEYWORD

nonn,more

AUTHOR

Per H. Lundow

STATUS

approved

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Last modified June 19 05:18 EDT 2021. Contains 345125 sequences. (Running on oeis4.)