A372599 - cp's OEIS frontend

A372599 Number of distinct prime factors of n^n-n.

n	a(n)
2	1
3	2
4	3
5	4
6	4
7	5
8	4
9	6
10	5
11	6
12	5
13	9
14	5
15	6
16	12
17	8
18	4
19	10
20	5
21	11
22	7
23	6
24	7
25	12
26	8
27	13
28	8
29	10
30	6
31	14
32	8
33	12
34	9
35	10
36	18
37	18
38	6
39	11
40	11
41	19
42	8
43	16
44	5
45	12
46	13
47	7
48	7
49	20
50	5
51	18
52	12
53	14
54	7
55	21
56	12
57	19
58	10
59	10
60	7
61	24
62	7
63	10
64	20
65	15
66	13
67	19
68	6
69	19
70	11
71	19
72	9
73	25
74	6
75	13

[1, 2, 3, 4, 4, 5, 4, 6, 5, 6, 5, 9, 5, 6, 12, 8, 4, 10, 5, 11, 7, 6, 7, 12, 8, 13, 8, 10, 6, 14, 8, 12, 9, 10, 18, 18, 6, 11, 11, 19, 8, 16, 5, 12, 13, 7, 7, 20, 5, 18, 12, 14, 7, 21, 12, 19, 10, 10, 7, 24, 7, 10, 20, 15, 13, 19, 6, 19, 11, 19, 9, 25, 6, 13]

cp's OEIS Frontend

A372599 Number of distinct prime factors of n^n-n.

Table of values

List of values

n	a(n)
2	1
3	2
4	3
5	4
6	4
7	5
8	4
9	6
10	5
11	6
12	5
13	9
14	5
15	6
16	12
17	8
18	4
19	10
20	5
21	11
22	7
23	6
24	7
25	12
26	8
27	13
28	8
29	10
30	6
31	14
32	8
33	12
34	9
35	10
36	18
37	18
38	6
39	11
40	11
41	19
42	8
43	16
44	5
45	12
46	13
47	7
48	7
49	20
50	5
51	18
52	12
53	14
54	7
55	21
56	12
57	19
58	10
59	10
60	7
61	24
62	7
63	10
64	20
65	15
66	13
67	19
68	6
69	19
70	11
71	19
72	9
73	25
74	6
75	13

n	a(n)
2	1
3	2
4	3
5	4
6	4
7	5
8	4
9	6
10	5
11	6
12	5
13	9
14	5
15	6
16	12
17	8
18	4
19	10
20	5
21	11
22	7
23	6
24	7
25	12
26	8
27	13
28	8
29	10
30	6
31	14
32	8
33	12
34	9
35	10
36	18
37	18
38	6
39	11
40	11
41	19
42	8
43	16
44	5
45	12
46	13
47	7
48	7
49	20
50	5
51	18
52	12
53	14
54	7
55	21
56	12
57	19
58	10
59	10
60	7
61	24
62	7
63	10
64	20
65	15
66	13
67	19
68	6
69	19
70	11
71	19
72	9
73	25
74	6
75	13

n	a(n)
2	1
3	2
4	3
5	4
6	4
7	5
8	4
9	6
10	5
11	6
12	5
13	9
14	5
15	6
16	12
17	8
18	4
19	10
20	5
21	11
22	7
23	6
24	7
25	12
26	8
27	13
28	8
29	10
30	6
31	14
32	8
33	12
34	9
35	10
36	18
37	18
38	6
39	11
40	11
41	19
42	8
43	16
44	5
45	12
46	13
47	7
48	7
49	20
50	5
51	18
52	12
53	14
54	7
55	21
56	12
57	19
58	10
59	10
60	7
61	24
62	7
63	10
64	20
65	15
66	13
67	19
68	6
69	19
70	11
71	19
72	9
73	25
74	6
75	13