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Indices k such that A000930(k) is prime.
2

%I #7 Dec 29 2023 21:06:19

%S 3,4,8,9,11,16,21,25,81,6241,25747

%N Indices k such that A000930(k) is prime.

%C a(12) > 200000. - _Donovan Johnson_, Mar 14 2010

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_, Feb 25 2010, following a question from Kyle Ledbetter

%E Two more terms from _R. J. Mathar_, Mar 01 2010

%E a(11) from _Donovan Johnson_, Mar 14 2010