A331121 - cp's OEIS frontend

A331121 a(n) is the smallest positive integer k for which tau(k) does not divide sigma(n).

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

[2, 2, 4, 2, 6, 16, 4, 2, 2, 6, 16, 4, 4, 16, 16, 2, 6, 2, 4, 6, 4, 16, 16, 24, 2, 6, 4, 4, 6, 16, 4, 2, 16, 6, 16, 2, 4, 24, 4, 6, 6, 16, 4, 16, 6, 16, 16, 4, 2, 2, 16, 4, 6, 36, 16, 36, 4, 6, 24, 16, 4, 16, 4, 2, 16, 16]

cp's OEIS Frontend

A331121 a(n) is the smallest positive integer k for which tau(k) does not divide sigma(n).

Table of values

List of values

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

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

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