A255219 - cp's OEIS frontend

A255219 Squarefree numbers k such that mu(k) = mu(phi(k)) where mu(k) is the Möbius function and phi(k) is Euler's totient function.

n	a(n)
1	1
2	3
3	14
4	22
5	31
6	43
7	46
8	67
9	71
10	79
11	94
12	103
13	118
14	131
15	139
16	166
17	191
18	214
19	223
20	239
21	283
22	311
23	334
24	358
25	367
26	419
27	422
28	431
29	439
30	443
31	454
32	499
33	526
34	599
35	607
36	619
37	643
38	647
39	659
40	662
41	683
42	694
43	718
44	743
45	766
46	787
47	823
48	827
49	907
50	926
51	934
52	947
53	958
54	971
55	1006

[1, 3, 14, 22, 31, 43, 46, 67, 71, 79, 94, 103, 118, 131, 139, 166, 191, 214, 223, 239, 283, 311, 334, 358, 367, 419, 422, 431, 439, 443, 454, 499, 526, 599, 607, 619, 643, 647, 659, 662, 683, 694, 718, 743, 766, 787, 823, 827, 907, 926, 934, 947, 958, 971, 1006]

cp's OEIS Frontend

A255219 Squarefree numbers k such that mu(k) = mu(phi(k)) where mu(k) is the Möbius function and phi(k) is Euler's totient function.

Table of values

List of values