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.

A087442 Numbers n such that n is not the power of a prime and such that for every prime divisor p of n, p-1 divides n-1.

Table of values

n a(n)
1 45
2 225
3 325
4 405
5 561
6 637
7 891
8 1105
9 1125
10 1225
11 1377
12 1729
13 2025
14 2465
15 2821
16 3321
17 3645
18 3751
19 3825
20 4225
21 4961
22 5589
23 5625
24 6517
25 6525
26 6601
27 7381
28 8125
29 8281
30 8625
31 8911
32 9801
33 10125
34 10585
35 10625
36 12025
37 13357
38 13833
39 14161
40 15841
41 15925

List of values

[45, 225, 325, 405, 561, 637, 891, 1105, 1125, 1225, 1377, 1729, 2025, 2465, 2821, 3321, 3645, 3751, 3825, 4225, 4961, 5589, 5625, 6517, 6525, 6601, 7381, 8125, 8281, 8625, 8911, 9801, 10125, 10585, 10625, 12025, 13357, 13833, 14161, 15841, 15925]