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.

A371085 Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.

Table of values

n a(n)
1 9
2 25
3 49
4 207
5 333
6 375
7 531
8 605
9 819
10 1331
11 1719
12 1850
13 2057
14 2205
15 2299
16 2331
17 2853
18 4491
19 4575
20 5746
21 6413
22 6591
23 6655
24 9559
25 9873
26 12947
27 13426
28 14063
29 15851
30 15886
31 16425
32 17303
33 19125
34 19942
35 20531
36 21609
37 21970
38 22139
39 26667
40 30923
41 33975
42 34731
43 35379
44 37251
45 37873
46 38350
47 38599
48 39075
49 41743
50 44447
51 45950

List of values

[9, 25, 49, 207, 333, 375, 531, 605, 819, 1331, 1719, 1850, 2057, 2205, 2299, 2331, 2853, 4491, 4575, 5746, 6413, 6591, 6655, 9559, 9873, 12947, 13426, 14063, 15851, 15886, 16425, 17303, 19125, 19942, 20531, 21609, 21970, 22139, 26667, 30923, 33975, 34731, 35379, 37251, 37873, 38350, 38599, 39075, 41743, 44447, 45950]