A342009 - cp's OEIS frontend

A342009 Numbers k such that the arithmetic derivative of k is a multiple of phi(k).

n	a(n)
1	1
2	2
3	4
4	8
5	9
6	12
7	15
8	16
9	20
10	32
11	36
12	48
13	64
14	81
15	108
16	112
17	128
18	144
19	180
20	189
21	192
22	196
23	225
24	256
25	320
26	324
27	400
28	432
29	500
30	512
31	528
32	576
33	625
34	729
35	768
36	972
37	1024
38	1225
39	1296
40	1300
41	1360
42	1452
43	1728
44	2048
45	2160
46	2304
47	2700
48	2816
49	2916
50	3024
51	3072
52	3375
53	3564
54	3840
55	3888
56	3993
57	4096
58	4800
59	5120
60	5184
61	5292
62	5616
63	6000

[1, 2, 4, 8, 9, 12, 15, 16, 20, 32, 36, 48, 64, 81, 108, 112, 128, 144, 180, 189, 192, 196, 225, 256, 320, 324, 400, 432, 500, 512, 528, 576, 625, 729, 768, 972, 1024, 1225, 1296, 1300, 1360, 1452, 1728, 2048, 2160, 2304, 2700, 2816, 2916, 3024, 3072, 3375, 3564, 3840, 3888, 3993, 4096, 4800, 5120, 5184, 5292, 5616, 6000]

cp's OEIS Frontend

A342009 Numbers k such that the arithmetic derivative of k is a multiple of phi(k).

Table of values

List of values