0,4
Cf. A000142, A152818. [From Omar E. Pol (info(AT)polprimos.com), Jan 08 2009]
Sequence in context: A138024 A167656 A021012 this_sequence A021416 A094756 A110925
Adjacent sequences: A154117 A154118 A154119 this_sequence A154121 A154122 A154123
easy,nonn,tabl,more
Omar E. Pol (info(AT)polprimos.com), Jan 05 2009
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