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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.

A308149 Positive integers with Collatz trajectories that do not include the number 5.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 16
6 21
7 32
8 42
9 64
10 75
11 84
12 85
13 113
14 128
15 150
16 151
17 168
18 170
19 201
20 226
21 227
22 256
23 267
24 300
25 301
26 302
27 336
28 340
29 341
30 401
31 402
32 403
33 423
34 452
35 453
36 454
37 475
38 512
39 534
40 535
41 537
42 600
43 602
44 604
45 605
46 633
47 635
48 672
49 680
50 682
51 713
52 715
53 802
54 803
55 804
56 805
57 806
58 846
59 847
60 891
61 904
62 906
63 908
64 909
65 950
66 951
67 953
68 955

List of values

[1, 2, 4, 8, 16, 21, 32, 42, 64, 75, 84, 85, 113, 128, 150, 151, 168, 170, 201, 226, 227, 256, 267, 300, 301, 302, 336, 340, 341, 401, 402, 403, 423, 452, 453, 454, 475, 512, 534, 535, 537, 600, 602, 604, 605, 633, 635, 672, 680, 682, 713, 715, 802, 803, 804, 805, 806, 846, 847, 891, 904, 906, 908, 909, 950, 951, 953, 955]