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.

A320393 First members of the Cunningham chains of the first kind whose length is a prime.

Table of values

n a(n)
1 2
2 3
3 11
4 23
5 29
6 41
7 53
8 83
9 113
10 131
11 173
12 179
13 191
14 233
15 239
16 251
17 281
18 293
19 419
20 431
21 443
22 491
23 593
24 641
25 653
26 659
27 683
28 719
29 743
30 761
31 809
32 911
33 953
34 1013
35 1019
36 1031
37 1049
38 1103
39 1223
40 1289
41 1439
42 1451
43 1481
44 1499
45 1511
46 1559
47 1583
48 1601
49 1733
50 1811
51 1889
52 1901
53 1931
54 1973
55 2003
56 2039
57 2063
58 2069
59 2129
60 2141

List of values

[2, 3, 11, 23, 29, 41, 53, 83, 113, 131, 173, 179, 191, 233, 239, 251, 281, 293, 419, 431, 443, 491, 593, 641, 653, 659, 683, 719, 743, 761, 809, 911, 953, 1013, 1019, 1031, 1049, 1103, 1223, 1289, 1439, 1451, 1481, 1499, 1511, 1559, 1583, 1601, 1733, 1811, 1889, 1901, 1931, 1973, 2003, 2039, 2063, 2069, 2129, 2141]