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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.

A071327 Sum of the squared primes dividing n.

Table of values

n a(n)
1 0
2 0
3 0
4 4
5 0
6 0
7 0
8 4
9 9
10 0
11 0
12 4
13 0
14 0
15 0
16 4
17 0
18 9
19 0
20 4
21 0
22 0
23 0
24 4
25 25
26 0
27 9
28 4
29 0
30 0
31 0
32 4
33 0
34 0
35 0
36 13
37 0
38 0
39 0
40 4
41 0
42 0
43 0
44 4
45 9
46 0
47 0
48 4
49 49
50 25
51 0
52 4
53 0
54 9
55 0
56 4
57 0
58 0
59 0
60 4
61 0
62 0
63 9
64 4
65 0
66 0
67 0
68 4
69 0
70 0
71 0
72 13
73 0
74 0
75 25
76 4
77 0
78 0
79 0
80 4
81 9
82 0
83 0
84 4
85 0
86 0
87 0
88 4
89 0
90 9
91 0

List of values

[0, 0, 0, 4, 0, 0, 0, 4, 9, 0, 0, 4, 0, 0, 0, 4, 0, 9, 0, 4, 0, 0, 0, 4, 25, 0, 9, 4, 0, 0, 0, 4, 0, 0, 0, 13, 0, 0, 0, 4, 0, 0, 0, 4, 9, 0, 0, 4, 49, 25, 0, 4, 0, 9, 0, 4, 0, 0, 0, 4, 0, 0, 9, 4, 0, 0, 0, 4, 0, 0, 0, 13, 0, 0, 25, 4, 0, 0, 0, 4, 9, 0, 0, 4, 0, 0, 0, 4, 0, 9, 0]

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