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.

A087251 Distinct largest-peak-values in 3x+1 trajectory arranged by their first appearance as initial value increases. A025586 without repetitions while keeping order.

Table of values

n a(n)
1 1
2 2
3 16
4 4
5 52
6 8
7 40
8 160
9 88
10 20
11 64
12 24
13 9232
14 32
15 100
16 112
17 304
18 196
19 136
20 48
21 148
22 232
23 56
24 184
25 68
26 208
27 72
28 340
29 808
30 80
31 244
32 84
33 256
34 592
35 280
36 96
37 448
38 104
39 520
40 116
41 352
42 628
43 4372
44 128
45 132
46 400
47 916
48 424
49 144
50 1024
51 152
52 472
53 736
54 168
55 176
56 532
57 180

List of values

[1, 2, 16, 4, 52, 8, 40, 160, 88, 20, 64, 24, 9232, 32, 100, 112, 304, 196, 136, 48, 148, 232, 56, 184, 68, 208, 72, 340, 808, 80, 244, 84, 256, 592, 280, 96, 448, 104, 520, 116, 352, 628, 4372, 128, 132, 400, 916, 424, 144, 1024, 152, 472, 736, 168, 176, 532, 180]