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%I #11 Jun 26 2019 00:40:22
%S 3,7,31,127,12207031,8191,131071,524287,
%T 1484520425576434196455942238665054573307722183,
%U 10333327940128053377465393536117755205850522803739374960650929
%N Smallest prime of the form (q^p-1)/(q-1), where p = prime(n) and q is also prime (q = A123487(n)).
%C Corresponding smallest primes q are listed in A123487.
%C a(n) coincides with A084732(n) when A066180(n) is prime or 0.
%F a(n) = (A123487(n)^prime(n) - 1) / (A123487(n) - 1).
%Y Cf. A123487, A066180, A084732.
%K nonn
%O 1,1
%A _Alexander Adamchuk_, Sep 30 2006
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