1,2
a(n)=1+A024916(n-1). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 25 2009]
Cf. A054519
Sequence in context: A054253 A045649 A024519 this_sequence A072829 A138226 A007979
Adjacent sequences: A160661 A160662 A160663 this_sequence A160665 A160666 A160667
easy,nonn
Ctibor O. Zizka (c.zizka(AT)email.cz), May 22 2009
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