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.

A129741 List of primitive prime divisors of the Somos-4 sequence (A006720) in their order of occurrence.

Table of values

n a(n)
1 2
2 3
3 7
4 23
5 59
6 157
7 11
8 139
9 8209
10 9257
11 620297
12 983
13 4003
14 1847
15 9803
16 1687054711
17 1433
18 33008447
19 83
20 101
21 113
22 51563
23 61
24 823
25 5381
26 20117
27 6329
28 262650531833
29 197
30 10259
31 519606349
32 2621
33 11887
34 136667817691
35 13933
36 42591667
37 564188663
38 211
39 8802371

List of values

[2, 3, 7, 23, 59, 157, 11, 139, 8209, 9257, 620297, 983, 4003, 1847, 9803, 1687054711, 1433, 33008447, 83, 101, 113, 51563, 61, 823, 5381, 20117, 6329, 262650531833, 197, 10259, 519606349, 2621, 11887, 136667817691, 13933, 42591667, 564188663, 211, 8802371]

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

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