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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.

A063829 usigma(n) = 2n + d(n), where d(n) is the number of divisors of n.

Table of values

n a(n)
1 150
2 294
3 726
4 1014
5 1428
6 1734
7 2166
8 3174
9 5046
10 5766
11 8214
12 10086
13 11094
14 13254
15 16854
16 20886
17 22326
18 26934
19 30246
20 31974
21 37446
22 41334
23 47526
24 56454
25 61206
26 63654
27 68694
28 71286
29 76614
30 96774
31 102966
32 112614
33 115926
34 133206
35 136806
36 147894
37 159414

List of values

[150, 294, 726, 1014, 1428, 1734, 2166, 3174, 5046, 5766, 8214, 10086, 11094, 13254, 16854, 20886, 22326, 26934, 30246, 31974, 37446, 41334, 47526, 56454, 61206, 63654, 68694, 71286, 76614, 96774, 102966, 112614, 115926, 133206, 136806, 147894, 159414]

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

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