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.

A331681 One, two, and all numbers of the form 2^k * prime(j) where k > 0 and j already belongs to the sequence.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 12
7 14
8 16
9 24
10 26
11 28
12 32
13 38
14 48
15 52
16 56
17 64
18 74
19 76
20 86
21 96
22 104
23 106
24 112
25 128
26 148
27 152
28 172
29 178
30 192
31 202
32 208
33 212
34 214
35 224
36 256
37 262
38 296
39 304
40 326
41 344
42 356
43 384
44 404
45 416
46 424
47 428
48 446
49 448
50 478
51 512
52 524
53 526
54 592
55 608
56 622
57 652

List of values

[1, 2, 4, 6, 8, 12, 14, 16, 24, 26, 28, 32, 38, 48, 52, 56, 64, 74, 76, 86, 96, 104, 106, 112, 128, 148, 152, 172, 178, 192, 202, 208, 212, 214, 224, 256, 262, 296, 304, 326, 344, 356, 384, 404, 416, 424, 428, 446, 448, 478, 512, 524, 526, 592, 608, 622, 652]

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

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