1,1
Cf. A019546, A034844, A087363.
Sequence in context: A117196 A064739 A112860 this_sequence A154765 A163997 A067931
Adjacent sequences: A152309 A152310 A152311 this_sequence A152313 A152314 A152315
easy,nonn,base
Omar E. Pol (info(AT)polprimos.com), Dec 02 2008
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