A229323 - cp's OEIS frontend

A229323 Composite squarefree numbers n such that p - tau(n) divides n - phi(n), where p are the prime factors of n, tau(n) = A000005(n) and phi(n) = A000010(n).

n	a(n)
1	6
2	10
3	15
4	21
5	42
6	28101
7	38505
8	5298186
9	8022111
10	28231629
11	36367086
12	98671659
13	132798279
14	163143714
15	201713946
16	251860911
17	434246667
18	537424773
19	968870877
20	999640581
21	1495625721
22	1548129363
23	3338717307
24	3836384682
25	6316358811
26	6982412973

[6, 10, 15, 21, 42, 28101, 38505, 5298186, 8022111, 28231629, 36367086, 98671659, 132798279, 163143714, 201713946, 251860911, 434246667, 537424773, 968870877, 999640581, 1495625721, 1548129363, 3338717307, 3836384682, 6316358811, 6982412973]

cp's OEIS Frontend

A229323 Composite squarefree numbers n such that p - tau(n) divides n - phi(n), where p are the prime factors of n, tau(n) = A000005(n) and phi(n) = A000010(n).

Table of values

List of values