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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.

A091117 Number of primes of the form 5k+2 less than 10^n.

Original entry on oeis.org

2, 7, 47, 309, 2412, 19622, 166212, 1440496, 12712315, 113764040, 1029518338, 9401997001
Offset: 1

Views

Author

Eric W. Weisstein, Dec 19 2003

Keywords

Comments

Computed by T. D. Noe, Dec 19 2003.

Links

Crossrefs

Cf. A045380.

Extensions

a(10) from Robert G. Wilson v, Dec 22 2003
a(11)-a(12) from Amiram Eldar, Apr 12 2022

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