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.

A103521 Primes which have fewer primitive roots than any larger prime.

Table of values

n a(n)
1 3
2 7
3 13
4 19
5 31
6 43
7 61
8 67
9 79
10 103
11 127
12 151
13 211
14 241
15 271
16 331
17 421
18 463
19 631
20 661
21 691
22 751
23 811
24 1051
25 1171
26 1321
27 1471
28 1531
29 1621
30 1741
31 2311
32 2731
33 2971
34 3571
35 3631
36 4621
37 4831
38 4951
39 5281
40 6091
41 6301
42 6361
43 7351
44 8191
45 9241
46 9661
47 9871

List of values

[3, 7, 13, 19, 31, 43, 61, 67, 79, 103, 127, 151, 211, 241, 271, 331, 421, 463, 631, 661, 691, 751, 811, 1051, 1171, 1321, 1471, 1531, 1621, 1741, 2311, 2731, 2971, 3571, 3631, 4621, 4831, 4951, 5281, 6091, 6301, 6361, 7351, 8191, 9241, 9661, 9871]