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.

A351419 If n = p_1^e_1 * ... * p_k^e_k, where p_1 < ... < p_k are primes, then a(n) is obtained by replacing the last factor p_k^e_k by (p_k - 1)^(e_k + 1); a(1) = 1.

Table of values

n a(n)
1 1
2 1
3 4
4 1
5 16
6 8
7 36
8 1
9 8
10 32
11 100
12 16
13 144
14 72
15 48
16 1
17 256
18 16
19 324
20 64
21 108
22 200
23 484
24 32
25 64
26 288
27 16
28 144
29 784
30 96
31 900
32 1
33 300
34 512
35 180
36 32
37 1296
38 648
39 432
40 128
41 1600
42 216
43 1764
44 400
45 144
46 968
47 2116
48 64
49 216
50 128
51 768
52 576
53 2704
54 32
55 500
56 288
57 972
58 1568

List of values

[1, 1, 4, 1, 16, 8, 36, 1, 8, 32, 100, 16, 144, 72, 48, 1, 256, 16, 324, 64, 108, 200, 484, 32, 64, 288, 16, 144, 784, 96, 900, 1, 300, 512, 180, 32, 1296, 648, 432, 128, 1600, 216, 1764, 400, 144, 968, 2116, 64, 216, 128, 768, 576, 2704, 32, 500, 288, 972, 1568]