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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.

A381431 Heinz number of the section-sum partition of the prime indices of n.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 5
7 7
8 8
9 9
10 7
11 11
12 10
13 13
14 11
15 11
16 16
17 17
18 15
19 19
20 14
21 13
22 13
23 23
24 20
25 25
26 17
27 27
28 22
29 29
30 13
31 31
32 32
33 17
34 19
35 17
36 25
37 37
38 23
39 19
40 28
41 41
42 17
43 43
44 26
45 33
46 29
47 47
48 40
49 49
50 35
51 23
52 34
53 53
54 45
55 19
56 44
57 29
58 31
59 59
60 26
61 61
62 37
63 39
64 64
65 23
66 19
67 67
68 38

List of values

[1, 2, 3, 4, 5, 5, 7, 8, 9, 7, 11, 10, 13, 11, 11, 16, 17, 15, 19, 14, 13, 13, 23, 20, 25, 17, 27, 22, 29, 13, 31, 32, 17, 19, 17, 25, 37, 23, 19, 28, 41, 17, 43, 26, 33, 29, 47, 40, 49, 35, 23, 34, 53, 45, 19, 44, 29, 31, 59, 26, 61, 37, 39, 64, 23, 19, 67, 38]

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

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