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.

A328246 Numbers whose third arithmetic derivative (A099306) is a squarefree number (A005117).

Table of values

n a(n)
1 9
2 14
3 18
4 21
5 25
6 33
7 38
8 46
9 49
10 57
11 65
12 77
13 85
14 93
15 98
16 121
17 126
18 129
19 134
20 138
21 141
22 145
23 150
24 161
25 166
26 177
27 185
28 186
29 194
30 201
31 205
32 206
33 209
34 217
35 221
36 237
37 242
38 249
39 253
40 258
41 262
42 265
43 266
44 289
45 290
46 301
47 305
48 306
49 315
50 322
51 326
52 333
53 334
54 338
55 341
56 342
57 350
58 361
59 365
60 369
61 375
62 377
63 381
64 393
65 398
66 402
67 413
68 414

List of values

[9, 14, 18, 21, 25, 33, 38, 46, 49, 57, 65, 77, 85, 93, 98, 121, 126, 129, 134, 138, 141, 145, 150, 161, 166, 177, 185, 186, 194, 201, 205, 206, 209, 217, 221, 237, 242, 249, 253, 258, 262, 265, 266, 289, 290, 301, 305, 306, 315, 322, 326, 333, 334, 338, 341, 342, 350, 361, 365, 369, 375, 377, 381, 393, 398, 402, 413, 414]