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A378122 a(n) = number of prime divisors of the sum of the first n primes.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 1
7 2
8 2
9 2
10 2
11 2
12 1
13 3
14 1
15 2
16 2
17 3
18 2
19 2
20 2
21 2
22 2
23 3
24 2
25 3
26 2
27 2
28 2
29 3
30 2
31 3
32 2
33 3
34 2
35 2
36 2
37 3
38 2
39 3
40 2
41 3
42 2
43 3
44 2
45 3
46 2
47 3
48 2
49 3
50 3
51 3
52 2
53 4
54 2
55 2
56 3
57 4
58 2
59 2
60 1
61 3
62 2
63 3
64 1
65 2
66 2
67 3
68 3
69 3
70 3
71 3
72 2
73 3
74 2
75 2
76 3
77 4
78 2
79 3
80 3
81 2
82 2
83 2
84 4
85 3
86 3

List of values

[1, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 2, 4, 2, 2, 3, 4, 2, 2, 1, 3, 2, 3, 1, 2, 2, 3, 3, 3, 3, 3, 2, 3, 2, 2, 3, 4, 2, 3, 3, 2, 2, 2, 4, 3, 3]

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