Submitted on: 25 September 2006.
Revised on: 15 December 2006.
Accepted on: 10 January 2007.
___________________EXPERIMENTAL MATHEMATICS---TAYLOR & FRANCIS INC
Submitted on: 08 February 2003.
Revised on: 25 May 2003.
Accepted on: 13 July 2003.
___________________EXPERIMENTAL MATHEMATICS---TAYLOR & FRANCIS INC
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Submitted on: 25 March 1999.
Revised on: 06 June 1999.
Accepted on: 21 July 1999.
___________________EXPERIMENTAL MATHEMATICS---TAYLOR & FRANCIS INC
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Submitted on: 25 October 2010.
Revised on: 20 February 2011.
Accepted on: 08 March 2011.
___________________EXPERIMENTAL MATHEMATICS---TAYLOR & FRANCIS INC
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