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.

A327978 Numbers whose arithmetic derivative (A003415) is a primorial number (A002110) > 1.

Table of values

n a(n)
1 9
2 161
3 209
4 221
5 2189
6 2561
7 3281
8 3629
9 5249
10 5549
11 6401
12 7181
13 7661
14 8321
15 8909
16 9089
17 9869
18 10001
19 10349
20 10541
21 10961
22 11009
23 11021
24 29861
25 38981
26 52601
27 66149
28 84101
29 93029
30 97481
31 132809
32 150281
33 158969
34 163301
35 197669
36 214661
37 227321
38 235721
39 285449
40 321989
41 338021
42 357881
43 369701
44 381449
45 385349
46 416261
47 420089
48 442889

List of values

[9, 161, 209, 221, 2189, 2561, 3281, 3629, 5249, 5549, 6401, 7181, 7661, 8321, 8909, 9089, 9869, 10001, 10349, 10541, 10961, 11009, 11021, 29861, 38981, 52601, 66149, 84101, 93029, 97481, 132809, 150281, 158969, 163301, 197669, 214661, 227321, 235721, 285449, 321989, 338021, 357881, 369701, 381449, 385349, 416261, 420089, 442889]