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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.

A218733 a(n) = (30^n - 1)/29.

Table of values

n a(n)
0 0
1 1
2 31
3 931
4 27931
5 837931
6 25137931
7 754137931
8 22624137931
9 678724137931
10 20361724137931
11 610851724137931
12 18325551724137931
13 549766551724137931
14 16492996551724137931
15 494789896551724137931
16 14843696896551724137931
17 445310906896551724137931
18 13359327206896551724137931

List of values

[0, 1, 31, 931, 27931, 837931, 25137931, 754137931, 22624137931, 678724137931, 20361724137931, 610851724137931, 18325551724137931, 549766551724137931, 16492996551724137931, 494789896551724137931, 14843696896551724137931, 445310906896551724137931, 13359327206896551724137931]

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

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