A134740 - cp's OEIS frontend

A134740 Number of distinct prime factors in the n-th multiply perfect number A007691(n).

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	5
10	4
11	6
12	5
13	2
14	5
15	6
16	6
17	7
18	5
19	2
20	7
21	7
22	6
23	6
24	6
25	2
26	7
27	7
28	7
29	6
30	8
31	8
32	8
33	8
34	6
35	7
36	8
37	8
38	9
39	7
40	8
41	2
42	9
43	9
44	9
45	11
46	10
47	9
48	10
49	10
50	8
51	9
52	11
53	10
54	10
55	8
56	11
57	11
58	10
59	10
60	11
61	11
62	9
63	11
64	9
65	12
66	11
67	13
68	13
69	12
70	11
71	12
72	12
73	11
74	13
75	12
76	12
77	12
78	11
79	12
80	13
81	12
82	11
83	10
84	13
85	12
86	11
87	10

[0, 2, 2, 3, 2, 3, 2, 4, 5, 4, 6, 5, 2, 5, 6, 6, 7, 5, 2, 7, 7, 6, 6, 6, 2, 7, 7, 7, 6, 8, 8, 8, 8, 6, 7, 8, 8, 9, 7, 8, 2, 9, 9, 9, 11, 10, 9, 10, 10, 8, 9, 11, 10, 10, 8, 11, 11, 10, 10, 11, 11, 9, 11, 9, 12, 11, 13, 13, 12, 11, 12, 12, 11, 13, 12, 12, 12, 11, 12, 13, 12, 11, 10, 13, 12, 11, 10]

cp's OEIS Frontend

A134740 Number of distinct prime factors in the n-th multiply perfect number A007691(n).

Table of values

List of values

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	5
10	4
11	6
12	5
13	2
14	5
15	6
16	6
17	7
18	5
19	2
20	7
21	7
22	6
23	6
24	6
25	2
26	7
27	7
28	7
29	6
30	8
31	8
32	8
33	8
34	6
35	7
36	8
37	8
38	9
39	7
40	8
41	2
42	9
43	9
44	9
45	11
46	10
47	9
48	10
49	10
50	8
51	9
52	11
53	10
54	10
55	8
56	11
57	11
58	10
59	10
60	11
61	11
62	9
63	11
64	9
65	12
66	11
67	13
68	13
69	12
70	11
71	12
72	12
73	11
74	13
75	12
76	12
77	12
78	11
79	12
80	13
81	12
82	11
83	10
84	13
85	12
86	11
87	10

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	5
10	4
11	6
12	5
13	2
14	5
15	6
16	6
17	7
18	5
19	2
20	7
21	7
22	6
23	6
24	6
25	2
26	7
27	7
28	7
29	6
30	8
31	8
32	8
33	8
34	6
35	7
36	8
37	8
38	9
39	7
40	8
41	2
42	9
43	9
44	9
45	11
46	10
47	9
48	10
49	10
50	8
51	9
52	11
53	10
54	10
55	8
56	11
57	11
58	10
59	10
60	11
61	11
62	9
63	11
64	9
65	12
66	11
67	13
68	13
69	12
70	11
71	12
72	12
73	11
74	13
75	12
76	12
77	12
78	11
79	12
80	13
81	12
82	11
83	10
84	13
85	12
86	11
87	10

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	5
10	4
11	6
12	5
13	2
14	5
15	6
16	6
17	7
18	5
19	2
20	7
21	7
22	6
23	6
24	6
25	2
26	7
27	7
28	7
29	6
30	8
31	8
32	8
33	8
34	6
35	7
36	8
37	8
38	9
39	7
40	8
41	2
42	9
43	9
44	9
45	11
46	10
47	9
48	10
49	10
50	8
51	9
52	11
53	10
54	10
55	8
56	11
57	11
58	10
59	10
60	11
61	11
62	9
63	11
64	9
65	12
66	11
67	13
68	13
69	12
70	11
71	12
72	12
73	11
74	13
75	12
76	12
77	12
78	11
79	12
80	13
81	12
82	11
83	10
84	13
85	12
86	11
87	10