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A033515 Number of matchings in graph C_{3} X P_{n} 0
4, 32, 228, 1655, 11978, 86731, 627960, 4546684, 32919766, 238352021, 1725762060, 12495193865, 90470101964, 655039004548, 4742739182904, 34339290944491, 248629928211118, 1800178148762579, 13033995507292632 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

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

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

CROSSREFS

Sequence in context: A120917 A099269 A125823 * A147551 A007278 A108449

Adjacent sequences:  A033512 A033513 A033514 * A033516 A033517 A033518

KEYWORD

nonn

AUTHOR

Per Hakan Lundow (phl(AT)theophys.kth.se)

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Last modified February 14 09:54 EST 2012. Contains 205614 sequences.