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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.

A379622 Denominators of the partial alternating sums of the reciprocals of the alternating sum of divisors function (A206369).

Table of values

n a(n)
1 1
2 1
3 2
4 6
5 12
6 12
7 12
8 60
9 420
10 210
11 105
12 210
13 140
14 420
15 840
16 9240
17 18480
18 2640
19 7920
20 7920
21 7920
22 7920
23 7920
24 7920
25 55440
26 55440
27 11088
28 3696
29 528
30 528
31 2640
32 18480
33 3696
34 924
35 616
36 1848
37 5544
38 5544
39 2772
40 6930
41 27720
42 27720
43 27720
44 27720
45 27720
46 27720
47 637560

List of values

[1, 1, 2, 6, 12, 12, 12, 60, 420, 210, 105, 210, 140, 420, 840, 9240, 18480, 2640, 7920, 7920, 7920, 7920, 7920, 7920, 55440, 55440, 11088, 3696, 528, 528, 2640, 18480, 3696, 924, 616, 1848, 5544, 5544, 2772, 6930, 27720, 27720, 27720, 27720, 27720, 27720, 637560]

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

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