2012/04/14 by Øystein J. Rødseth, Rødseth, Øystein J.
Mathematics · #05A05 #11A25 #11P70 #Combinatorics (math.CO) #FOS: Mathematics #Number Theory (math.NT) #math.CO #math.NT #msc:05A05 #msc:11A25 #msc:11P70
paper · pdf · doi:10.48550/arxiv.1204.3179
This paper has been withdrawn
arxiv created 2012/06/21 · arxiv updated 2012/06/22
This paper has been withdrawn by the author due to an error in the proof of Theorem 6.