A248029 - cp's OEIS frontend

A248029 Least positive integer m such that m + n divides phi(m)*sigma(n), where phi(.) and sigma(.) are given by A000010 and A000203.

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

[1, 1, 3, 1, 6, 1, 7, 4, 8, 1, 2, 1, 10, 9, 15, 1, 8, 1, 1, 11, 14, 1, 6, 6, 16, 5, 14, 1, 6, 1, 10, 15, 11, 13, 16, 1, 7, 9, 5, 1, 6, 1, 12, 7, 26, 1, 14, 8, 12, 21, 46, 1, 6, 17, 4, 23, 32, 1, 24, 1, 34, 41, 63, 7, 6, 1, 16, 11, 2]

cp's OEIS Frontend

A248029 Least positive integer m such that m + n divides phi(m)*sigma(n), where phi(.) and sigma(.) are given by A000010 and A000203.

Table of values

List of values

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

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

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