2,3
How Many Primes Are There?
a(n) = ceil(log_2(A007097(n - 2)))
Cf. A060207, A007097.
Sequence in context: A117536 A104665 A094018 this_sequence A014670 A036034 A006950
Adjacent sequences: A071679 A071680 A071681 this_sequence A071683 A071684 A071685
more,nonn,less
David Wasserman (dwasserm(AT)earthlink.net), May 31 2002
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