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A164288 Members of A164368 which are not Ramanujan primes. +0
21
109, 137, 191, 197, 283, 521, 617, 683, 907, 991, 1033, 1117, 1319, 1493, 1619, 1627, 1697, 1741, 1747, 1801, 1931, 1949, 2011, 2111, 2143, 2153, 2293, 2417, 2539, 2543, 2549, 2591, 2621, 2837, 2927, 2953, 2969, 3079, 3119, 3187, 3203, 3329, 3389, 3407 (list; graph; listen)
OFFSET

1,1

COMMENT

Every lesser of twin primes (A001359), beginning with 137, which is not in A104272, is in the sequence. [From Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 31 2009]

LINKS

V. Shevelev, On critical small intervals containing primes [From Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 20 2009]

FORMULA

A164368 \ A104272.

EXAMPLE

p=137 is the least lesser of twin primes which is not a Ramanujan prime. Therefore it is in the sequence. [From Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 31 2009]

CROSSREFS

Cf. A104272, A001262, A001567, A062568, A141232.

Sequence in context: A039492 A095609 A046295 this_sequence A161483 A141948 A102908

Adjacent sequences: A164285 A164286 A164287 this_sequence A164289 A164290 A164291

KEYWORD

nonn

AUTHOR

Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 12 2009

EXTENSIONS

I added 521. - Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 17 2009

Redefined in terms of A164368 and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 18 2009

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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