A308967 - cp's OEIS frontend

A308967 Number of prime factors (with multiplicity) of the numerator A001008 of the harmonic number H(n) = Sum_{k=1..n} 1/k.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	1
10	3
11	2
12	3
13	3
14	2
15	2
16	3
17	2
18	3
19	2
20	2
21	1
22	5
23	2
24	3
25	2
26	1
27	3
28	3
29	3
30	5
31	2
32	3
33	2
34	2
35	2
36	5
37	2
38	4
39	2
40	4
41	1
42	4
43	3
44	4
45	3
46	4
47	4
48	3
49	2
50	3
51	3
52	5
53	2
54	3
55	2
56	1
57	3
58	5
59	2
60	4
61	2
62	1
63	4
64	4
65	4
66	6
67	4
68	2
69	1
70	4
71	4
72	4
73	3
74	3
75	4
76	4
77	5
78	4
79	1
80	4
81	3
82	3
83	4
84	4
85	3
86	3
87	4
88	5
89	1
90	2
91	1
92	3
93	2
94	2
95	3
96	3
97	3
98	3
99	3

[0, 1, 1, 2, 1, 2, 3, 1, 1, 3, 2, 3, 3, 2, 2, 3, 2, 3, 2, 2, 1, 5, 2, 3, 2, 1, 3, 3, 3, 5, 2, 3, 2, 2, 2, 5, 2, 4, 2, 4, 1, 4, 3, 4, 3, 4, 4, 3, 2, 3, 3, 5, 2, 3, 2, 1, 3, 5, 2, 4, 2, 1, 4, 4, 4, 6, 4, 2, 1, 4, 4, 4, 3, 3, 4, 4, 5, 4, 1, 4, 3, 3, 4, 4, 3, 3, 4, 5, 1, 2, 1, 3, 2, 2, 3, 3, 3, 3, 3]

cp's OEIS Frontend

A308967 Number of prime factors (with multiplicity) of the numerator A001008 of the harmonic number H(n) = Sum_{k=1..n} 1/k.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	1
10	3
11	2
12	3
13	3
14	2
15	2
16	3
17	2
18	3
19	2
20	2
21	1
22	5
23	2
24	3
25	2
26	1
27	3
28	3
29	3
30	5
31	2
32	3
33	2
34	2
35	2
36	5
37	2
38	4
39	2
40	4
41	1
42	4
43	3
44	4
45	3
46	4
47	4
48	3
49	2
50	3
51	3
52	5
53	2
54	3
55	2
56	1
57	3
58	5
59	2
60	4
61	2
62	1
63	4
64	4
65	4
66	6
67	4
68	2
69	1
70	4
71	4
72	4
73	3
74	3
75	4
76	4
77	5
78	4
79	1
80	4
81	3
82	3
83	4
84	4
85	3
86	3
87	4
88	5
89	1
90	2
91	1
92	3
93	2
94	2
95	3
96	3
97	3
98	3
99	3

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	1
10	3
11	2
12	3
13	3
14	2
15	2
16	3
17	2
18	3
19	2
20	2
21	1
22	5
23	2
24	3
25	2
26	1
27	3
28	3
29	3
30	5
31	2
32	3
33	2
34	2
35	2
36	5
37	2
38	4
39	2
40	4
41	1
42	4
43	3
44	4
45	3
46	4
47	4
48	3
49	2
50	3
51	3
52	5
53	2
54	3
55	2
56	1
57	3
58	5
59	2
60	4
61	2
62	1
63	4
64	4
65	4
66	6
67	4
68	2
69	1
70	4
71	4
72	4
73	3
74	3
75	4
76	4
77	5
78	4
79	1
80	4
81	3
82	3
83	4
84	4
85	3
86	3
87	4
88	5
89	1
90	2
91	1
92	3
93	2
94	2
95	3
96	3
97	3
98	3
99	3

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	1
10	3
11	2
12	3
13	3
14	2
15	2
16	3
17	2
18	3
19	2
20	2
21	1
22	5
23	2
24	3
25	2
26	1
27	3
28	3
29	3
30	5
31	2
32	3
33	2
34	2
35	2
36	5
37	2
38	4
39	2
40	4
41	1
42	4
43	3
44	4
45	3
46	4
47	4
48	3
49	2
50	3
51	3
52	5
53	2
54	3
55	2
56	1
57	3
58	5
59	2
60	4
61	2
62	1
63	4
64	4
65	4
66	6
67	4
68	2
69	1
70	4
71	4
72	4
73	3
74	3
75	4
76	4
77	5
78	4
79	1
80	4
81	3
82	3
83	4
84	4
85	3
86	3
87	4
88	5
89	1
90	2
91	1
92	3
93	2
94	2
95	3
96	3
97	3
98	3
99	3