A255199 - cp's OEIS frontend

A255199 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	8
4	12
5	14
6	16
7	20
8	22
9	24
10	25
11	27
12	28
13	31
14	32
15	36
16	40
17	43
18	44
19	45
20	46
21	48
22	50
23	52
24	54
25	56
26	60
27	63
28	64
29	67
30	68
31	71
32	72
33	75
34	76
35	79
36	80
37	81
38	84
39	88
40	90
41	92
42	94
43	96
44	99
45	100
46	103
47	104
48	108
49	112
50	116
51	117
52	118
53	120
54	124
55	125
56	126
57	128
58	131
59	132
60	135
61	136
62	139

[1, 3, 8, 12, 14, 16, 20, 22, 24, 25, 27, 28, 31, 32, 36, 40, 43, 44, 45, 46, 48, 50, 52, 54, 56, 60, 63, 64, 67, 68, 71, 72, 75, 76, 79, 80, 81, 84, 88, 90, 92, 94, 96, 99, 100, 103, 104, 108, 112, 116, 117, 118, 120, 124, 125, 126, 128, 131, 132, 135, 136, 139]

cp's OEIS Frontend

A255199 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

n	a(n)
1	1
2	3
3	8
4	12
5	14
6	16
7	20
8	22
9	24
10	25
11	27
12	28
13	31
14	32
15	36
16	40
17	43
18	44
19	45
20	46
21	48
22	50
23	52
24	54
25	56
26	60
27	63
28	64
29	67
30	68
31	71
32	72
33	75
34	76
35	79
36	80
37	81
38	84
39	88
40	90
41	92
42	94
43	96
44	99
45	100
46	103
47	104
48	108
49	112
50	116
51	117
52	118
53	120
54	124
55	125
56	126
57	128
58	131
59	132
60	135
61	136
62	139

n	a(n)
1	1
2	3
3	8
4	12
5	14
6	16
7	20
8	22
9	24
10	25
11	27
12	28
13	31
14	32
15	36
16	40
17	43
18	44
19	45
20	46
21	48
22	50
23	52
24	54
25	56
26	60
27	63
28	64
29	67
30	68
31	71
32	72
33	75
34	76
35	79
36	80
37	81
38	84
39	88
40	90
41	92
42	94
43	96
44	99
45	100
46	103
47	104
48	108
49	112
50	116
51	117
52	118
53	120
54	124
55	125
56	126
57	128
58	131
59	132
60	135
61	136
62	139

n	a(n)
1	1
2	3
3	8
4	12
5	14
6	16
7	20
8	22
9	24
10	25
11	27
12	28
13	31
14	32
15	36
16	40
17	43
18	44
19	45
20	46
21	48
22	50
23	52
24	54
25	56
26	60
27	63
28	64
29	67
30	68
31	71
32	72
33	75
34	76
35	79
36	80
37	81
38	84
39	88
40	90
41	92
42	94
43	96
44	99
45	100
46	103
47	104
48	108
49	112
50	116
51	117
52	118
53	120
54	124
55	125
56	126
57	128
58	131
59	132
60	135
61	136
62	139