A066659 - cp's OEIS frontend

A066659 Least k > n such that phi(k) = phi(n), if such k exists; = 0 otherwise.

n	a(n)
1	2
2	0
3	4
4	6
5	8
6	0
7	9
8	10
9	14
10	12
11	22
12	0
13	21
14	18
15	16
16	20
17	32
18	0
19	27
20	24
21	26
22	0
23	46
24	30
25	33
26	28
27	38
28	36
29	58
30	0
31	62
32	34
33	44
34	40
35	39
36	42
37	57
38	54
39	45
40	48
41	55
42	0
43	49
44	50
45	52
46	0
47	94
48	60
49	86
50	66
51	64
52	56
53	106
54	0
55	75
56	70
57	63
58	0
59	118
60	0
61	77
62	0
63	74
64	68
65	104
66	0
67	134
68	80
69	92
70	72
71	142
72	78
73	91

[2, 0, 4, 6, 8, 0, 9, 10, 14, 12, 22, 0, 21, 18, 16, 20, 32, 0, 27, 24, 26, 0, 46, 30, 33, 28, 38, 36, 58, 0, 62, 34, 44, 40, 39, 42, 57, 54, 45, 48, 55, 0, 49, 50, 52, 0, 94, 60, 86, 66, 64, 56, 106, 0, 75, 70, 63, 0, 118, 0, 77, 0, 74, 68, 104, 0, 134, 80, 92, 72, 142, 78, 91]

cp's OEIS Frontend

A066659 Least k > n such that phi(k) = phi(n), if such k exists; = 0 otherwise.

Table of values

List of values

n	a(n)
1	2
2	0
3	4
4	6
5	8
6	0
7	9
8	10
9	14
10	12
11	22
12	0
13	21
14	18
15	16
16	20
17	32
18	0
19	27
20	24
21	26
22	0
23	46
24	30
25	33
26	28
27	38
28	36
29	58
30	0
31	62
32	34
33	44
34	40
35	39
36	42
37	57
38	54
39	45
40	48
41	55
42	0
43	49
44	50
45	52
46	0
47	94
48	60
49	86
50	66
51	64
52	56
53	106
54	0
55	75
56	70
57	63
58	0
59	118
60	0
61	77
62	0
63	74
64	68
65	104
66	0
67	134
68	80
69	92
70	72
71	142
72	78
73	91

n	a(n)
1	2
2	0
3	4
4	6
5	8
6	0
7	9
8	10
9	14
10	12
11	22
12	0
13	21
14	18
15	16
16	20
17	32
18	0
19	27
20	24
21	26
22	0
23	46
24	30
25	33
26	28
27	38
28	36
29	58
30	0
31	62
32	34
33	44
34	40
35	39
36	42
37	57
38	54
39	45
40	48
41	55
42	0
43	49
44	50
45	52
46	0
47	94
48	60
49	86
50	66
51	64
52	56
53	106
54	0
55	75
56	70
57	63
58	0
59	118
60	0
61	77
62	0
63	74
64	68
65	104
66	0
67	134
68	80
69	92
70	72
71	142
72	78
73	91

n	a(n)
1	2
2	0
3	4
4	6
5	8
6	0
7	9
8	10
9	14
10	12
11	22
12	0
13	21
14	18
15	16
16	20
17	32
18	0
19	27
20	24
21	26
22	0
23	46
24	30
25	33
26	28
27	38
28	36
29	58
30	0
31	62
32	34
33	44
34	40
35	39
36	42
37	57
38	54
39	45
40	48
41	55
42	0
43	49
44	50
45	52
46	0
47	94
48	60
49	86
50	66
51	64
52	56
53	106
54	0
55	75
56	70
57	63
58	0
59	118
60	0
61	77
62	0
63	74
64	68
65	104
66	0
67	134
68	80
69	92
70	72
71	142
72	78
73	91