A306908 - cp's OEIS frontend

A306908 Numbers k with exactly three distinct prime factors and such that phi(k) is a square.

n	a(n)
1	60
2	114
3	126
4	170
5	204
6	240
7	273
8	285
9	315
10	364
11	370
12	380
13	438
14	444
15	456
16	468
17	504
18	540
19	680
20	816
21	825
22	902
23	960
24	969
25	978
26	1010
27	1026
28	1071
29	1095
30	1100
31	1134
32	1212
33	1258
34	1292
35	1358
36	1456
37	1460
38	1480
39	1500
40	1520
41	1729
42	1746
43	1752
44	1776
45	1824
46	1836
47	1872

[60, 114, 126, 170, 204, 240, 273, 285, 315, 364, 370, 380, 438, 444, 456, 468, 504, 540, 680, 816, 825, 902, 960, 969, 978, 1010, 1026, 1071, 1095, 1100, 1134, 1212, 1258, 1292, 1358, 1456, 1460, 1480, 1500, 1520, 1729, 1746, 1752, 1776, 1824, 1836, 1872]

cp's OEIS Frontend

A306908 Numbers k with exactly three distinct prime factors and such that phi(k) is a square.

Table of values

List of values