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A028466
Number of perfect matchings in graph C_{3} X C_{5} X P_{2n}.
0
1, 106784, 56850678464, 32898111133723321, 19096119789145305208336, 11085838411090123868197412129, 6435670258948861016802884153464799, 3736105167546089403361511734752297982336, 2168924345573542197211153077794030841411079321
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.
CROSSREFS
Sequence in context: A237081 A253404 A223343 * A157105 A122711 A297994
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(8) from Alois P. Heinz, Dec 10 2013
STATUS
approved