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Journal of Integer Sequences, Vol. 18 (2015), Article 15.11.4 |
Abstract:
(Concerned with sequences A008288 A229914 A229915 A239257.)
Received June 19 2015; revised versions received August 12 2015; October 8 2015; October 20 2015. Published in Journal of Integer Sequences, November 25 2015.