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.

A071785 In prime factorization of n replace each prime with the sum of its decimal digits.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 12, 4, 14, 15, 16, 8, 18, 10, 20, 21, 4, 5, 24, 25, 8, 27, 28, 11, 30, 4, 32, 6, 16, 35, 36, 10, 20, 12, 40, 5, 42, 7, 8, 45, 10, 11, 48, 49, 50, 24, 16, 8, 54, 10, 56, 30, 22, 14, 60, 7, 8, 63, 64, 20, 12, 13, 32, 15, 70, 8, 72]

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

Content is available under The OEIS End-User License Agreement.