A102199 Iccanobirt semiprimes (9 of 15): Semiprime numbers in A102119.

4, 26, 122309, 918349, 1892158, 46917727, 25411507, 629951893, 444564787601, 47147317432111, 6249165484647581, 68535341599076501, 49254291193918837, 70468687493735802121, 806424054403260562011601, 1987232535137485809825804281, 7450185554509682737733199157763041

Offset: 1

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

• nonn
• less
• base

Crossrefs

Cf. A001358, A102119, A102191-A102205.

Formula

a(n) = A102119(A102179(n)).

Extensions

Offset changed to 1 and more terms from Jinyuan Wang, Aug 14 2021