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.

A213916 Sum of all odd numbers in Collatz (3x+1) trajectory of n.

Table of values

n a(n)
1 1
2 1
3 9
4 1
5 6
6 9
7 54
8 1
9 63
10 6
11 47
12 9
13 19
14 54
15 132
16 1
17 36
18 63
19 95
20 6
21 22
22 47
23 117
24 9
25 120
26 19
27 20262
28 54
29 76
30 132
31 20194
32 1
33 153
34 36
35 94
36 63
37 91
38 95
39 450
40 6
41 20235
42 22
43 248
44 47
45 81
46 117
47 20163
48 9
49 140
50 120
51 204
52 19
53 59
54 20262
55 20426
56 54
57 305
58 76
59 411
60 132
61 178

List of values

[1, 1, 9, 1, 6, 9, 54, 1, 63, 6, 47, 9, 19, 54, 132, 1, 36, 63, 95, 6, 22, 47, 117, 9, 120, 19, 20262, 54, 76, 132, 20194, 1, 153, 36, 94, 63, 91, 95, 450, 6, 20235, 22, 248, 47, 81, 117, 20163, 9, 140, 120, 204, 19, 59, 20262, 20426, 54, 305, 76, 411, 132, 178]

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

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