|Journal of Integer Sequences, Vol. 14 (2011), Article 11.7.7|
Institute of Mathematics
Department of Integrative Biology
Universität für Bodenkultur
Gregor Mendel-Straße 33
(Concerned with sequences
Received May 11 2011; revised version received July 18 2011. Published in Journal of Integer Sequences, September 5 2011.