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.

A055725 Number of isolated lucky numbers <= 10^n.

Original entry on oeis.org

0, 0, 9, 87, 762, 6448, 56580, 498141, 4447890
Offset: 0

Views

Author

Robert G. Wilson v, Jun 09 2000

Keywords

Comments

An isolated lucky number is a lucky number which is not a member of a lucky twin. The set of such numbers is A000959 setminus (A031158 union A031159). - Sean A. Irvine, Apr 04 2022

Crossrefs

Cf. A000959, A031158, A031159.

Extensions

a(7) and title clarified by Sean A. Irvine, Apr 04 2022
a(8) from Pontus von Brömssen, Apr 04 2022

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