A217139 - cp's OEIS frontend

A217139 Numbers n such that phi(n) = phi(n+12), with Euler's totient function phi = A000010.

n	a(n)
1	48
2	68
3	72
4	78
5	86
6	88
7	114
8	143
9	144
10	156
11	157
12	164
13	168
14	186
15	192
16	203
17	216
18	222
19	247
20	273
21	292
22	356
23	402
24	432
25	444
26	450
27	452
28	456
29	612
30	654
31	728
32	732
33	762
34	798
35	834
36	864
37	876
38	884
39	932
40	942
41	964
42	1032
43	1054
44	1080
45	1086
46	1124
47	1147
48	1152
49	1194
50	1209
51	1220

[48, 68, 72, 78, 86, 88, 114, 143, 144, 156, 157, 164, 168, 186, 192, 203, 216, 222, 247, 273, 292, 356, 402, 432, 444, 450, 452, 456, 612, 654, 728, 732, 762, 798, 834, 864, 876, 884, 932, 942, 964, 1032, 1054, 1080, 1086, 1124, 1147, 1152, 1194, 1209, 1220]

cp's OEIS Frontend

A217139 Numbers n such that phi(n) = phi(n+12), with Euler's totient function phi = A000010.

Table of values

List of values