A053049 - cp's OEIS frontend

A053049 Smallest integer m such that sum_(k=1 to m) phi(k) is divisible by n, where phi(k) is the totient function.

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	4
7	9
8	10
9	7
10	5
11	8
12	6
13	46
14	9
15	19
16	10
17	18
18	7
19	60
20	16
21	11
22	8
23	12
24	15
25	22
26	46
27	29
28	9
29	13
30	19
31	51
32	10
33	36
34	18
35	21
36	15
37	88
38	60
39	142
40	16
41	67
42	11
43	23
44	31
45	24
46	12
47	55
48	17
49	40
50	22
51	18
52	153
53	26
54	29
55	184
56	75
57	84
58	13
59	92
60	19

[1, 2, 4, 3, 5, 4, 9, 10, 7, 5, 8, 6, 46, 9, 19, 10, 18, 7, 60, 16, 11, 8, 12, 15, 22, 46, 29, 9, 13, 19, 51, 10, 36, 18, 21, 15, 88, 60, 142, 16, 67, 11, 23, 31, 24, 12, 55, 17, 40, 22, 18, 153, 26, 29, 184, 75, 84, 13, 92, 19]

cp's OEIS Frontend

A053049 Smallest integer m such that sum_(k=1 to m) phi(k) is divisible by n, where phi(k) is the totient function.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	4
7	9
8	10
9	7
10	5
11	8
12	6
13	46
14	9
15	19
16	10
17	18
18	7
19	60
20	16
21	11
22	8
23	12
24	15
25	22
26	46
27	29
28	9
29	13
30	19
31	51
32	10
33	36
34	18
35	21
36	15
37	88
38	60
39	142
40	16
41	67
42	11
43	23
44	31
45	24
46	12
47	55
48	17
49	40
50	22
51	18
52	153
53	26
54	29
55	184
56	75
57	84
58	13
59	92
60	19

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	4
7	9
8	10
9	7
10	5
11	8
12	6
13	46
14	9
15	19
16	10
17	18
18	7
19	60
20	16
21	11
22	8
23	12
24	15
25	22
26	46
27	29
28	9
29	13
30	19
31	51
32	10
33	36
34	18
35	21
36	15
37	88
38	60
39	142
40	16
41	67
42	11
43	23
44	31
45	24
46	12
47	55
48	17
49	40
50	22
51	18
52	153
53	26
54	29
55	184
56	75
57	84
58	13
59	92
60	19

n	a(n)
1	1
2	2
3	4
4	3
5	5
6	4
7	9
8	10
9	7
10	5
11	8
12	6
13	46
14	9
15	19
16	10
17	18
18	7
19	60
20	16
21	11
22	8
23	12
24	15
25	22
26	46
27	29
28	9
29	13
30	19
31	51
32	10
33	36
34	18
35	21
36	15
37	88
38	60
39	142
40	16
41	67
42	11
43	23
44	31
45	24
46	12
47	55
48	17
49	40
50	22
51	18
52	153
53	26
54	29
55	184
56	75
57	84
58	13
59	92
60	19