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A066543 Number of spanning trees in the line graph of the product of two cycle graphs, each of order n, L(C_n x C_n). 0
782757789696, 5976745079881894723584, 29514790517935282585600000000000000, 95296975201657487970461602120230307486331043840000 (list; graph; refs; listen; history; internal format)
OFFSET

3,1

EXAMPLE

NumberOfSpanningTrees(L(C_3 x C_3)) = 782757789696

MATHEMATICA

NumberOfSpanningTrees[LineGraph[GraphProduct[Cycle[n], Cycle[n]]]] (* First load package DiscreteMath`Combinatorica` *)

CROSSREFS

Sequence in context: A092382 A017411 A017531 * A162027 A172616 A172798

Adjacent sequences:  A066540 A066541 A066542 * A066544 A066545 A066546

KEYWORD

nonn

AUTHOR

Roberto E. Martinez II (remartin(AT)fas.harvard.edu), Jan 07 2002

EXTENSIONS

Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jan 14, 2002

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Last modified February 15 20:26 EST 2012. Contains 205852 sequences.