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Integers n such that A157752 (n) are primes.
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%I #38 Feb 23 2017 22:32:30

%S 1,5,10,23,30,267

%N Integers n such that A157752 (n) are primes.

%C For n=9,13,17,18,20,22,41,..., A157752(n) is a semiprime (Cf. A280001).

%Y Cf. A157752, A280001.

%K nonn

%O 1,2

%A _Zak Seidov_, Feb 21 2017