[seqfan] primes in A226181

Vladimir Shevelev shevelev at bgu.ac.il
Tue May 27 13:25:27 CEST 2014

How many actually primes in sequence A226181 ? Let pi_1(x) be number of A226181 
primes not exceeding x. I believe that pi_1(x)=o(pi(x)), where
 pi(x) is the counting function of all primes  and x goes to infinity. Is'nt it?


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