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Iccanobirt semiprime indices (12 of 15): Indices of semiprime numbers in A102122.
1

%I #14 Aug 14 2021 13:11:32

%S 5,9,11,18,21,29,31,64,69,76,80,81,102,111,112,120,122,133,135,136,

%T 187,212,219,314

%N Iccanobirt semiprime indices (12 of 15): Indices of semiprime numbers in A102122.

%F A102122(a(n)) = A102202(n).

%Y Cf. A001358, A102122, A102171-A102185, A102202.

%K nonn,more,less,base

%O 1,1

%A _Jonathan Vos Post_ and _Ray Chandler_, Dec 31 2004

%E a(22) from _Robert Price_, Nov 10 2018

%E Offset changed to 1 and a(23)-a(24) from _Jinyuan Wang_, Aug 14 2021