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Iccanobirt semiprimes (12 of 15): Semiprime numbers in A102122.
1

%I #12 Aug 14 2021 13:12:18

%S 4,26,302,6487,6572211,9962261161,20114953831,72323276790496009462,

%T 9563112289639086692081,639278857103151880047311,

%U 13532727020275663728604021,91820624869556443938377242,629083300047263751187646851269521,40032985928622992884587988549627831

%N Iccanobirt semiprimes (12 of 15): Semiprime numbers in A102122.

%F a(n) = A102122(A102182(n)).

%Y Cf. A001358, A102122, A102182, A102191-A102205.

%K nonn,less,base

%O 1,1

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

%E Offset changed to 1 and more terms from _Jinyuan Wang_, Aug 14 2021