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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.

A119707 Number of distinct primes appearing in all partitions of n into prime parts.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 3
6 2
7 4
8 3
9 4
10 4
11 5
12 4
13 6
14 5
15 6
16 6
17 7
18 6
19 8
20 7
21 8
22 8
23 9
24 8
25 9
26 9
27 9
28 9
29 10
30 9
31 11
32 10
33 11
34 11
35 11
36 11
37 12
38 11
39 12
40 12
41 13
42 12
43 14
44 13
45 14
46 14
47 15
48 14
49 15
50 15
51 15
52 15
53 16
54 15
55 16
56 16
57 16
58 16
59 17
60 16
61 18
62 17
63 18
64 18
65 18
66 18
67 19
68 18
69 19
70 19
71 20
72 19
73 21
74 20
75 21
76 21
77 21
78 21
79 22

List of values

[0, 1, 1, 1, 3, 2, 4, 3, 4, 4, 5, 4, 6, 5, 6, 6, 7, 6, 8, 7, 8, 8, 9, 8, 9, 9, 9, 9, 10, 9, 11, 10, 11, 11, 11, 11, 12, 11, 12, 12, 13, 12, 14, 13, 14, 14, 15, 14, 15, 15, 15, 15, 16, 15, 16, 16, 16, 16, 17, 16, 18, 17, 18, 18, 18, 18, 19, 18, 19, 19, 20, 19, 21, 20, 21, 21, 21, 21, 22]

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

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