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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.

A118115 Partial sums of n concatenated n times.

Table of values

n a(n)
1 1
2 23
3 356
4 4800
5 60355
6 727021
7 8504798
8 97393686
9 1097393685
10 10101010102107494695
11 1121212121213218605806
12 122333333333334430727018
13 13253646464646465743858331
14 1427395060606060607157999745
15 152942546575757575758673151260
16 16314558708191919191920289312876

List of values

[1, 23, 356, 4800, 60355, 727021, 8504798, 97393686, 1097393685, 10101010102107494695, 1121212121213218605806, 122333333333334430727018, 13253646464646465743858331, 1427395060606060607157999745, 152942546575757575758673151260, 16314558708191919191920289312876]

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

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