login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A033527 Number of matchings in graph P_{2} X P_{4} X P_{n}. 1
1, 71, 21497, 5493583, 1441534384, 376940962215, 98618371821449, 25799240154157639, 6749345823947488233, 1765694380951147363456, 461922949276035424430681, 120843562204869252316712655, 31613858308925485200467329841, 8270494656919429771594190182151 (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 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

Sequence in context: A251382 A208679 A220980 * A112615 A243665 A243686

Adjacent sequences:  A033524 A033525 A033526 * A033528 A033529 A033530

KEYWORD

nonn

AUTHOR

Per H. Lundow

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 21 09:09 EDT 2020. Contains 337911 sequences. (Running on oeis4.)