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Submitted on: 10 August 2014.
Revised on: 30 November 2014.
Accepted on: 25 December 2014.
___________________Journal of Integer Sequences---UNIV WATERLOO
Submitted on: 11 September 2022.
Revised on: 29 December 2022.
Accepted on: 12 January 2023.
___________________Journal of Integer Sequences---UNIV WATERLOO
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Submitted on: 17 June 2004.
Revised on: 14 August 2004.
Accepted on: 01 September 2004.
___________________Journal of Integer Sequences---UNIV WATERLOO
Submitted on: 09 March 2007.
Revised on: 17 May 2007.
Accepted on: 12 July 2007.
___________________Journal of Integer Sequences---UNIV WATERLOO
Submitted on: 15 March 2008.
Revised on: 24 June 2008.
Accepted on: 23 July 2008.
___________________Journal of Integer Sequences---UNIV WATERLOO
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