A087021 - cp's OEIS frontend

A087021 Number of distinct prime factors of n-th cyclic number.

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

[4, 8, 9, 8, 10, 8, 10, 21, 23, 19, 19, 15, 16, 12, 11, 33, 31, 19, 24, 22, 24, 18, 14, 33, 39, 23, 36, 13, 13, 19, 36, 32, 29, 27, 25, 11, 20, 56, 37, 46, 25, 22, 21, 16, 47, 25, 33, 22, 55, 32, 25]

cp's OEIS Frontend

A087021 Number of distinct prime factors of n-th cyclic number.

Table of values

List of values

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

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

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