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.

A325257 a(1) = 1; a(n) = Sum_{d|n, d prime(n/d) * a(d).

Table of values

n a(n)
1 1
2 3
3 5
4 16
5 11
6 43
7 17
8 88
9 48
10 95
11 31
12 320
13 41
14 145
15 157
16 486
17 59
18 554
19 67
20 696
21 243
22 265
23 83
24 2204
25 218
26 347
27 458
28 1062
29 109
30 1961
31 127
32 2668
33 447
34 493
35 523
36 5044
37 157
38 565
39 577
40 4780
41 179
42 3021
43 191
44 1938
45 1998
46 697
47 211
48 14590
49 516
50 2538
51 823
52 2526
53 241
54 6622
55 939

List of values

[1, 3, 5, 16, 11, 43, 17, 88, 48, 95, 31, 320, 41, 145, 157, 486, 59, 554, 67, 696, 243, 265, 83, 2204, 218, 347, 458, 1062, 109, 1961, 127, 2668, 447, 493, 523, 5044, 157, 565, 577, 4780, 179, 3021, 191, 1938, 1998, 697, 211, 14590, 516, 2538, 823, 2526, 241, 6622, 939]