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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.

A357845 Numerators of the partial alternating sums of the reciprocals of the sum of divisors function (A000203).

Table of values

n a(n)
1 1
2 2
3 11
4 65
5 79
6 6
7 55
8 769
9 10837
10 30691
11 33421
12 32251
13 34591
14 16613
15 34591
16 1039561
17 365327
18 356647
19 373573
20 365513
21 1504367
22 4400261
23 4569521
24 4501817
25 149447
26 146327
27 149603
28 147263
29 151631
30 49937
31 25651
32 75913
33 38639
34 114097
35 232289
36 230129
37 4470731
38 4408487

List of values

[1, 2, 11, 65, 79, 6, 55, 769, 10837, 30691, 33421, 32251, 34591, 16613, 34591, 1039561, 365327, 356647, 373573, 365513, 1504367, 4400261, 4569521, 4501817, 149447, 146327, 149603, 147263, 151631, 49937, 25651, 75913, 38639, 114097, 232289, 230129, 4470731, 4408487]

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

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