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%I #17 Jun 13 2017 10:34:50
%S 1,2,7,8,13,43,55,59,145,149,545,2468,4049,4055,15653,22765
%N Numbers n such that 3^n + n*2^n is prime.
%C a(17) > 30000. - _Giovanni Resta_, May 05 2016
%e n = 2 is a term since 3^2 + 2*2^2 = 17 is prime.
%t Select[Range[1000], PrimeQ[3^# + # * 2^#]&] (* _Giovanni Resta_, May 05 2016 *)
%o (MATLAB)
%o if isprime(3^n + n*2^n)
%o disp(n)
%o end
%o (PARI) is(n)=ispseudoprime(3^n+n*2^n) \\ _Charles R Greathouse IV_, Jun 13 2017
%Y Cf. A270102, A123924.
%K nonn,more
%O 1,2
%A _Vardan Semerjyan_, Mar 11 2016
%E a(15)-a(16) from _Giovanni Resta_, May 05 2016
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