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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.

A274340 The period 4 sequence of the iterated sum of deficient divisors function (A187793) starting at 19.

Table of values

n a(n)
1 19
2 20
3 22
4 36
5 19
6 20
7 22
8 36
9 19
10 20
11 22
12 36
13 19
14 20
15 22
16 36
17 19
18 20
19 22
20 36
21 19
22 20
23 22
24 36
25 19
26 20
27 22
28 36
29 19
30 20
31 22
32 36
33 19
34 20
35 22
36 36
37 19
38 20
39 22
40 36
41 19
42 20
43 22
44 36
45 19
46 20
47 22
48 36
49 19
50 20
51 22
52 36
53 19
54 20
55 22
56 36
57 19
58 20
59 22
60 36

List of values

[19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36, 19, 20, 22, 36]

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

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