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.

A063960 Sum of non-unitary prime divisors of n!: sum of those prime divisors for which the exponent in the prime factorization exceeds 1.

Table of values

n a(n)
1 0
2 0
3 0
4 2
5 2
6 5
7 5
8 5
9 5
10 10
11 10
12 10
13 10
14 17
15 17
16 17
17 17
18 17
19 17
20 17
21 17
22 28
23 28
24 28
25 28
26 41
27 41
28 41
29 41
30 41
31 41
32 41
33 41
34 58
35 58
36 58
37 58
38 77
39 77
40 77
41 77
42 77
43 77
44 77
45 77
46 100
47 100
48 100
49 100
50 100
51 100
52 100
53 100
54 100
55 100
56 100
57 100
58 129
59 129
60 129
61 129
62 160
63 160
64 160
65 160

List of values

[0, 0, 0, 2, 2, 5, 5, 5, 5, 10, 10, 10, 10, 17, 17, 17, 17, 17, 17, 17, 17, 28, 28, 28, 28, 41, 41, 41, 41, 41, 41, 41, 41, 58, 58, 58, 58, 77, 77, 77, 77, 77, 77, 77, 77, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 129, 129, 129, 129, 160, 160, 160, 160]

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

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