1,1
Cf. A000040, A000041, A052002, A163997.
Sequence in context: A032397 A028879 A067567 this_sequence A104294 A137270 A071111
Adjacent sequences: A163995 A163996 A163997 this_sequence A163999 A164000 A164001
more,nonn
Omar E. Pol (info(AT)polprimos.com), Aug 09 2009
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