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.

A087252 Numbers that are divisible by 4, but cannot be the largest peak value in a 3x+1 trajectory, regardless of the initial value.

Table of values

n a(n)
1 12
2 28
3 36
4 44
5 60
6 76
7 92
8 108
9 120
10 124
11 140
12 156
13 164
14 172
15 188
16 204
17 216
18 220
19 236
20 248
21 252
22 268
23 284
24 292
25 300
26 316
27 328
28 332
29 348
30 364
31 376
32 380
33 388
34 396
35 412
36 420
37 428
38 432
39 436
40 440
41 444
42 460
43 476
44 484
45 492
46 496
47 500
48 504
49 508
50 516
51 524
52 540
53 548

List of values

[12, 28, 36, 44, 60, 76, 92, 108, 120, 124, 140, 156, 164, 172, 188, 204, 216, 220, 236, 248, 252, 268, 284, 292, 300, 316, 328, 332, 348, 364, 376, 380, 388, 396, 412, 420, 428, 432, 436, 440, 444, 460, 476, 484, 492, 496, 500, 504, 508, 516, 524, 540, 548]

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

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