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.

A213917 Difference between sum of all even and the sum of all odd numbers in Collatz (3x+1) trajectory of n.

Table of values

n a(n)
1 -1
2 1
3 31
4 5
5 24
6 37
7 180
8 13
9 213
10 34
11 165
12 49
13 81
14 194
15 430
16 29
17 142
18 231
19 329
20 54
21 104
22 187
23 399
24 73
25 418
26 107
27 60916
28 222
29 290
30 460
31 60716
32 61
33 535
34 176
35 352
36 267
37 353
38 367
39 1444
40 94
41 60861
42 146
43 842
44 231
45 335
46 445
47 60653
48 121
49 526
50 468
51 722
52 159
53 281

List of values

[-1, 1, 31, 5, 24, 37, 180, 13, 213, 34, 165, 49, 81, 194, 430, 29, 142, 231, 329, 54, 104, 187, 399, 73, 418, 107, 60916, 222, 290, 460, 60716, 61, 535, 176, 352, 267, 353, 367, 1444, 94, 60861, 146, 842, 231, 335, 445, 60653, 121, 526, 468, 722, 159, 281]