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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A102178 Iccanobirt semiprime indices (8 of 15): Indices of semiprime numbers in A102118.

Original entry on oeis.org

5, 9, 11, 16, 17, 18, 20, 30, 31, 41, 43, 54, 68, 69, 84, 135, 139, 174, 188, 191, 203, 207, 243, 301, 356
Offset: 1

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Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102118, A102171-A102185, A102198.

Formula

A102118(a(n)) = A102198(n).

Extensions

a(21)-a(22) from Robert Price, Nov 09 2018
Offset changed to 1 and a(23)-a(25) from Jinyuan Wang, Aug 14 2021
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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