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Iccanobirt semiprime indices (14 of 15): Indices of semiprime numbers in A102124.
2

%I #14 Aug 15 2021 09:02:31

%S 5,11,19,22,28,29,42,61,68,72,108,120,126,211,223,281,301,308,333,344,

%T 347,363,435,462,519,538,605

%N Iccanobirt semiprime indices (14 of 15): Indices of semiprime numbers in A102124.

%F A102124(a(n)) = A102204(n).

%Y Cf. A001358, A102124, A102171-A102185, A102204.

%K nonn,more,less,base

%O 1,1

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

%E a(14)-a(15) from _Robert Price_, Nov 10 2018

%E Offset changed to 1 and a(16)-a(27) from _Jinyuan Wang_, Aug 15 2021