A141766 - cp's OEIS frontend

A141766 A positive integer n is included if both (p-1) and (p+1) divide n for every prime p that divides n.

n	a(n)
1	1
2	12
3	24
4	36
5	48
6	60
7	72
8	96
9	108
10	120
11	144
12	168
13	180
14	192
15	216
16	240
17	288
18	300
19	324
20	336
21	360
22	384
23	432
24	480
25	504
26	540
27	576
28	600
29	648
30	660
31	672
32	720
33	768
34	840
35	864
36	900
37	960
38	972
39	1008
40	1080
41	1152
42	1176
43	1200
44	1296
45	1320
46	1344
47	1440
48	1500
49	1512
50	1536
51	1620

[1, 12, 24, 36, 48, 60, 72, 96, 108, 120, 144, 168, 180, 192, 216, 240, 288, 300, 324, 336, 360, 384, 432, 480, 504, 540, 576, 600, 648, 660, 672, 720, 768, 840, 864, 900, 960, 972, 1008, 1080, 1152, 1176, 1200, 1296, 1320, 1344, 1440, 1500, 1512, 1536, 1620]

cp's OEIS Frontend

A141766 A positive integer n is included if both (p-1) and (p+1) divide n for every prime p that divides n.

Table of values

List of values