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A164920
Primes which are obtained at least by two ways using the iterations of the Bertrand operator (see A164917) beginning with primes of A164368.
1
113, 139, 199, 211, 223, 277, 293, 397, 421, 443
OFFSET
1,1
COMMENTS
The sequence is connected with our sieve selecting the primes of A164368 from all primes.
LINKS
V. Shevelev, On critical small intervals containing primes, arXiv:0908.2319 [math.NT], 2009.
EXAMPLE
113 is in the sequence since it is obtained either by iterations of Bertrand operator beginning from 17 (17=>31=>61=>113) or by such iterations beginning with 59 (59=>113), and both of primes 17 and 59 are in A164368.
CROSSREFS
KEYWORD
nonn,more,uned
AUTHOR
Vladimir Shevelev, Aug 31 2009
STATUS
approved