cp's OEIS Frontend

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.

A085888 Let r and s be such that r + s = n; a(n) = minimum value of sigma(r) + sigma(s).

Table of values

n a(n)
2 2
3 4
4 5
5 7
6 7
7 9
8 9
9 11
10 12
11 15
12 13
13 15
14 15
15 17
16 18
17 21
18 19
19 21
20 21
21 23
22 24
23 27
24 25
25 27
26 28
27 31
28 30
29 36
30 31
31 33
32 33
33 35
34 36
35 39
36 38
37 44
38 39
39 41
40 42
41 45
42 43
43 45
44 45
45 47
46 48
47 51
48 49
49 51
50 52
51 55
52 54
53 60
54 55
55 57
56 58
57 61
58 60
59 66
60 61
61 63
62 63
63 65
64 66
65 69
66 68
67 74
68 69
69 71
70 72
71 75
72 73
73 75

List of values

[2, 4, 5, 7, 7, 9, 9, 11, 12, 15, 13, 15, 15, 17, 18, 21, 19, 21, 21, 23, 24, 27, 25, 27, 28, 31, 30, 36, 31, 33, 33, 35, 36, 39, 38, 44, 39, 41, 42, 45, 43, 45, 45, 47, 48, 51, 49, 51, 52, 55, 54, 60, 55, 57, 58, 61, 60, 66, 61, 63, 63, 65, 66, 69, 68, 74, 69, 71, 72, 75, 73, 75]

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

Content is available under The OEIS End-User License Agreement.