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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.

A332193 a(n) = 10^(2n+1) - 1 - 6*10^n.

Table of values

n a(n)
0 3
1 939
2 99399
3 9993999
4 999939999
5 99999399999
6 9999993999999
7 999999939999999
8 99999999399999999
9 9999999993999999999
10 999999999939999999999
11 99999999999399999999999
12 9999999999993999999999999
13 999999999999939999999999999
14 99999999999999399999999999999
15 9999999999999993999999999999999

List of values

[3, 939, 99399, 9993999, 999939999, 99999399999, 9999993999999, 999999939999999, 99999999399999999, 9999999993999999999, 999999999939999999999, 99999999999399999999999, 9999999999993999999999999, 999999999999939999999999999, 99999999999999399999999999999, 9999999999999993999999999999999]

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

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