cp's OEIS Frontend

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.

A064143 Sum of unitary prime divisors of binomial(n, floor(n/2)).

Table of values

n a(n)
1 0
2 2
3 3
4 5
5 7
6 5
7 12
8 14
9 9
10 7
11 23
12 21
13 27
14 27
15 29
16 31
17 48
18 46
19 62
20 60
21 59
22 59
23 81
24 79
25 66
26 66
27 59
28 59
29 93
30 93
31 124
32 126
33 120
34 118
35 125
36 123
37 141
38 141
39 158
40 156
41 193
42 193
43 225
44 225
45 194
46 194
47 243
48 241
49 241
50 241
51 245
52 245
53 298
54 298
55 321
56 321
57 314
58 314
59 365
60 365
61 395

List of values

[0, 2, 3, 5, 7, 5, 12, 14, 9, 7, 23, 21, 27, 27, 29, 31, 48, 46, 62, 60, 59, 59, 81, 79, 66, 66, 59, 59, 93, 93, 124, 126, 120, 118, 125, 123, 141, 141, 158, 156, 193, 193, 225, 225, 194, 194, 243, 241, 241, 241, 245, 245, 298, 298, 321, 321, 314, 314, 365, 365, 395]