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A140828 a(0)=1, a(n) = ceiling(prime(n)/a(n-1)), where prime(n) is the n-th prime. 1
1, 2, 2, 3, 3, 4, 4, 5, 4, 6, 5, 7, 6, 7, 7, 7, 8, 8, 8, 9, 8, 10, 8, 11, 9, 11, 10, 11, 10, 11, 11, 12, 11, 13, 11, 14, 11, 15, 11, 16, 11, 17, 11, 18, 11, 18, 12, 18, 13, 18, 13, 18, 14, 18, 14, 19, 14, 20, 14, 20, 15, 19, 16, 20, 16, 20, 16, 21, 17, 21, 17, 21, 18, 21, 18, 22, 18 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..76.

MATHEMATICA

a = {1}; For[n = 1, n < 80, n++, AppendTo[a, Ceiling[Prime[n]/a[[n]]]]]; a (* Stefan Steinerberger, Aug 28 2008 *)

CROSSREFS

Cf. A140829 (similar sequence).

Sequence in context: A319468 A137791 A096125 * A262907 A290323 A260254

Adjacent sequences:  A140825 A140826 A140827 * A140829 A140830 A140831

KEYWORD

nonn

AUTHOR

Leroy Quet, Jul 18 2008

EXTENSIONS

More terms from Stefan Steinerberger, Aug 28 2008

STATUS

approved

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Last modified April 19 08:55 EDT 2019. Contains 322241 sequences. (Running on oeis4.)