A192824 - OEIS

A192824

Least n-Ramanujan prime.

2, 2, 11, 41, 569, 1367

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OFFSET

0,1

COMMENTS

We define the 0-Ramanujan primes to be the usual primes (A000040), and we define the 1-Ramanujan primes to be the Ramanujan primes (A104272).

The sequence is only conjectural without a proof of an upper bound on a(n) (like the bound A104272(n) < prime(3*n) proved by Laishram and used in computing Ramanujan primes). - Jonathan Sondow, Aug 27 2011

LINKS

Table of n, a(n) for n=0..5.

CROSSREFS

Cf. A104272 (Ramanujan primes), A192820 (2-Ramanujan primes), A192821 (3-Ramanujan primes), A192822 (4-Ramanujan primes), A192823 (5-Ramanujan primes), A225907 (least n-Ramanujan prime less than half the next n-Ramanujan prime, or 0 if none).

Sequence in context: A014220 A089544 A208967 * A184237 A069648 A275869

Adjacent sequences: A192821 A192822 A192823 * A192825 A192826 A192827

KEYWORD

nonn,more

AUTHOR

T. D. Noe, Jul 11 2011

STATUS

approved