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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.

A378123 a(n) = number of prime divisors of the sum of the first n odd primes.

Table of values

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

List of values

[1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 3, 2, 2, 2, 1, 3, 1, 2, 2, 3, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 3, 2, 3, 2, 2, 3, 3, 2, 3, 3, 3, 2, 4, 2, 2, 2, 3, 4, 3, 2, 3, 1, 3, 1, 3, 2, 3, 2, 5, 1, 5, 2, 4, 1, 3, 2, 3, 3, 3, 1, 3, 2, 3, 1, 3, 2, 3, 2, 4, 3, 3, 2, 2, 2, 4]

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