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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.

A145852 Primes of the form k followed by a 0 and k 9's.

Table of values

n a(n)
1 109
2 2099
3 409999
4 1909999999999999999999
5 2809999999999999999999999999999
6 41099999999999999999999999999999999999999999
7 7609999999999999999999999999999999999999999999999999999999999999999999999999999

List of values

[109, 2099, 409999, 1909999999999999999999, 2809999999999999999999999999999, 41099999999999999999999999999999999999999999, 7609999999999999999999999999999999999999999999999999999999999999999999999999999]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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