0,3
Cf. A001401, A014396.
Sequence in context: A015558 A002711 A124311 this_sequence A117067 A123334 A140196
Adjacent sequences: A050907 A050908 A050909 this_sequence A050911 A050912 A050913
nonn
Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 29 1999
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