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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.

A379619 Numerators of the partial sums of the reciprocals of the alternating sum of divisors function (A206369).

Table of values

n a(n)
1 1
2 2
3 5
4 17
5 37
6 43
7 15
8 79
9 573
10 152
11 311
12 484
13 657
14 2041
15 4187
16 46897
17 94949
18 97589
19 295847
20 300467
21 305087
22 310631
23 313151
24 63739
25 9181
26 9313
27 46961
28 47401
29 333787
30 340717
31 68513
32 9863
33 49711
34 25103
35 6317
36 44549
37 89483
38 90253
39 181661
40 183047
41 9187
42 18605
43 18671

List of values

[1, 2, 5, 17, 37, 43, 15, 79, 573, 152, 311, 484, 657, 2041, 4187, 46897, 94949, 97589, 295847, 300467, 305087, 310631, 313151, 63739, 9181, 9313, 46961, 47401, 333787, 340717, 68513, 9863, 49711, 25103, 6317, 44549, 89483, 90253, 181661, 183047, 9187, 18605, 18671]

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

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