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.

A048670 Jacobsthal function A048669 applied to the product of the first n primes (A002110).

Table of values

n a(n)
1 2
2 4
3 6
4 10
5 14
6 22
7 26
8 34
9 40
10 46
11 58
12 66
13 74
14 90
15 100
16 106
17 118
18 132
19 152
20 174
21 190
22 200
23 216
24 234
25 258
26 264
27 282
28 300
29 312
30 330
31 354
32 378
33 388
34 414
35 432
36 450
37 476
38 492
39 510
40 538
41 550
42 574
43 600
44 616
45 642
46 660
47 686
48 718
49 742
50 762
51 798
52 810
53 834
54 858
55 876
56 908
57 926
58 954

List of values

[2, 4, 6, 10, 14, 22, 26, 34, 40, 46, 58, 66, 74, 90, 100, 106, 118, 132, 152, 174, 190, 200, 216, 234, 258, 264, 282, 300, 312, 330, 354, 378, 388, 414, 432, 450, 476, 492, 510, 538, 550, 574, 600, 616, 642, 660, 686, 718, 742, 762, 798, 810, 834, 858, 876, 908, 926, 954]

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

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