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Journal of Integer Sequences, Vol. 11 (2008), Article 08.1.3 |
Abstract:
(Concerned with sequences A000108 A000110 A000262 A000670 A001263 A002866 A006906 A088368 and A105278 .)
Received October 2 2007; revised version received February 5 2008. Published in Journal of Integer Sequences, February 5 2008.