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A156149 Primes p such that prime(p)+2 = 0 (mod p), where prime(p)=A000040(p) is the p-th prime. 3

%I #3 Jul 14 2012 11:32:23

%S 11,71,637319,637327

%N Primes p such that prime(p)+2 = 0 (mod p), where prime(p)=A000040(p) is the p-th prime.

%C The subsequence of primes in A092044.

%F a(n) = A000720(A156150(n)) = A000040(A156148(n))

%o (PARI) p=c=0; until(0, until( isprime(c++), p=nextprime(p+1)); (p+2)%c & next; print1( c","))

%Y Cf. A156154.

%K hard,more,nonn

%O 1,1

%A _M. F. Hasler_, Feb 04 2009

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)