A248007 - cp's OEIS frontend

A248007 Least positive integer m such that m + n divides phi(m)*phi(n), where phi(.) is Euler's totient function.

n	a(n)
7	5
8	8
9	3
10	14
11	9
12	20
13	11
14	10
15	9
16	16
17	7
18	18
19	5
20	12
21	3
22	38
23	21
24	8
25	15
26	58
27	9
28	20
29	11
30	18
31	14
32	32
33	7
34	14
35	13
36	12
37	35
38	22
39	9
40	24
41	7
42	46
43	13
44	31
45	3
46	42
47	45
48	16
49	11
50	30
51	13
52	44
53	19
54	27
55	25
56	40
57	15
58	26
59	28
60	36
61	35
62	28
63	9
64	64
65	7
66	54
67	21
68	28
69	19
70	26

[5, 8, 3, 14, 9, 20, 11, 10, 9, 16, 7, 18, 5, 12, 3, 38, 21, 8, 15, 58, 9, 20, 11, 18, 14, 32, 7, 14, 13, 12, 35, 22, 9, 24, 7, 46, 13, 31, 3, 42, 45, 16, 11, 30, 13, 44, 19, 27, 25, 40, 15, 26, 28, 36, 35, 28, 9, 64, 7, 54, 21, 28, 19, 26]

cp's OEIS Frontend

A248007 Least positive integer m such that m + n divides phi(m)*phi(n), where phi(.) is Euler's totient function.

Table of values

List of values

n	a(n)
7	5
8	8
9	3
10	14
11	9
12	20
13	11
14	10
15	9
16	16
17	7
18	18
19	5
20	12
21	3
22	38
23	21
24	8
25	15
26	58
27	9
28	20
29	11
30	18
31	14
32	32
33	7
34	14
35	13
36	12
37	35
38	22
39	9
40	24
41	7
42	46
43	13
44	31
45	3
46	42
47	45
48	16
49	11
50	30
51	13
52	44
53	19
54	27
55	25
56	40
57	15
58	26
59	28
60	36
61	35
62	28
63	9
64	64
65	7
66	54
67	21
68	28
69	19
70	26

n	a(n)
7	5
8	8
9	3
10	14
11	9
12	20
13	11
14	10
15	9
16	16
17	7
18	18
19	5
20	12
21	3
22	38
23	21
24	8
25	15
26	58
27	9
28	20
29	11
30	18
31	14
32	32
33	7
34	14
35	13
36	12
37	35
38	22
39	9
40	24
41	7
42	46
43	13
44	31
45	3
46	42
47	45
48	16
49	11
50	30
51	13
52	44
53	19
54	27
55	25
56	40
57	15
58	26
59	28
60	36
61	35
62	28
63	9
64	64
65	7
66	54
67	21
68	28
69	19
70	26

n	a(n)
7	5
8	8
9	3
10	14
11	9
12	20
13	11
14	10
15	9
16	16
17	7
18	18
19	5
20	12
21	3
22	38
23	21
24	8
25	15
26	58
27	9
28	20
29	11
30	18
31	14
32	32
33	7
34	14
35	13
36	12
37	35
38	22
39	9
40	24
41	7
42	46
43	13
44	31
45	3
46	42
47	45
48	16
49	11
50	30
51	13
52	44
53	19
54	27
55	25
56	40
57	15
58	26
59	28
60	36
61	35
62	28
63	9
64	64
65	7
66	54
67	21
68	28
69	19
70	26