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.

A143043 10^n-th number divisible by exactly 5 distinct primes.

Original entry on oeis.org

6006, 17490, 67860, 331674, 1980902, 13757850, 106254070, 882141222, 7687451167, 69242679948
Offset: 1

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Author

Lekraj Beedassy, Jul 18 2008

Keywords

References

  • J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 455, pp 94, Ellipses, Paris 2008.

Crossrefs

Cf. A051270.

Formula

a(n)=A051270(10^n).

Extensions

a(8)-a(10) from Donovan Johnson, Mar 30 2010