cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A102203 Iccanobirt semiprimes (13 of 15): Semiprime numbers in A102123.

Original entry on oeis.org

4, 26, 49, 1651, 44311, 38141, 45901, 990681, 8041777, 60558487, 8252802091, 1348187591, 11280376871, 49455591538, 1658081357516741, 15268848817955861, 6791980801494070261, 8278821177559776598, 759117158185214871379, 47088657278621730593201, 187491222710962870446779
Offset: 1

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Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102123, A102183, A102191-A102205.

Formula

a(n) = A102123(A102183(n)).

Extensions

Offset changed to 1 and more terms from Jinyuan Wang, Aug 15 2021
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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