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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.

A345030 a(n) = Sum_{k=1..n} n^(floor(n/k) - 1).

Table of values

n a(n)
1 1
2 3
3 11
4 70
5 633
6 7821
7 117709
8 2097684
9 43047545
10 1000010125
11 25937439391
12 743008621422
13 23298085496173
14 793714780786669
15 29192926036832363
16 1152921504875352376
17 48661191876077295937
18 2185911559749718388655
19 104127350297928227579629

List of values

[1, 3, 11, 70, 633, 7821, 117709, 2097684, 43047545, 1000010125, 25937439391, 743008621422, 23298085496173, 793714780786669, 29192926036832363, 1152921504875352376, 48661191876077295937, 2185911559749718388655, 104127350297928227579629]

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

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