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A073719 a(n)=Floor[p(2^n)/c(2^n)]=Floor[2^n-th prime/2^n-th composite]. 0
0, 0, 1, 2, 2, 3, 4, 5, 5, 6, 7, 8, 8, 9, 10, 11, 12, 12, 13, 14, 15, 15, 16, 17, 18, 18, 19 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

FORMULA

a(n)=Floor[A000040(A000079(n))/A002818(A000079(n))]

CROSSREFS

Cf. A000040, A002818, A000079, A073459.

Sequence in context: A074183 A039960 A105235 * A105566 A064317 A127037

Adjacent sequences:  A073716 A073717 A073718 * A073720 A073721 A073722

KEYWORD

more,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Aug 05 2002

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Last modified February 17 02:31 EST 2012. Contains 205978 sequences.