OFFSET
2,1
EXAMPLE
NumberOfSpanningTrees(L(S_3 x S_3)) = 69360
MATHEMATICA
NumberOfSpanningTrees[LineGraph[GraphProduct[Star[n], Star[n]]]] (* First load package DiscreteMath`Combinatorica` *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Roberto E. Martinez II, Jan 07 2002
EXTENSIONS
Edited by Dean Hickerson, Jan 14, 2002
STATUS
approved