Submitted on: 05 February 2015.
Revised on: 24 May 2015.
Accepted on: 01 July 2015.
___________________Journal of Integer Sequences---UNIV WATERLOO
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http://reply.papertrans.cn/2/175/17429/17429-13.png
Submitted on: 06 August 2000.
Revised on: 30 September 2000.
Accepted on: 26 October 2000.
___________________Journal of Integer Sequences---UNIV WATERLOO
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Submitted on: 15 July 2024.
Revised on: 16 August 2024.
Accepted on: 26 September 2024.
___________________Journal of Integer Sequences---UNIV WATERLOO
http://reply.papertrans.cn/2/175/17429/17429-18.png
Submitted on: 14 November 1999.
Revised on: 31 December 1999.
Accepted on: 14 February 2000.
___________________Journal of Integer Sequences---UNIV WATERLOO
Submitted on: 06 October 2018.
Revised on: 26 November 2018.
Accepted on: 10 December 2018.
___________________Journal of Integer Sequences---UNIV WATERLOO