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A028446 Number of perfect matchings in graph P_{2n} X P_{2n} X P_{2n}. 1
1, 9, 5051532105 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

Per Hakan Lundow, "Computation of matching polynomials and the number of 1-factors in polygraphs", Research report, No 12, 1996, Department of Math., Umea University, Sweden.

LINKS

Table of n, a(n) for n=0..2.

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

CROSSREFS

Sequence in context: A225775 A154110 A235400 * A058470 A058434 A067487

Adjacent sequences:  A028443 A028444 A028445 * A028447 A028448 A028449

KEYWORD

nonn,bref,more

AUTHOR

Per H. Lundow

STATUS

approved

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Last modified August 6 00:46 EDT 2021. Contains 346493 sequences. (Running on oeis4.)