A123369 - cp's OEIS frontend

A123369 Number of prime divisors of n-th Conway and Guy second-order harmonic number (counted with multiplicity).

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	1
7	2
8	2
9	1
10	3
11	2
12	2
13	2
14	3
15	2
16	4
17	3
18	1
19	2
20	5
21	3
22	3
23	2
24	2
25	1
26	3
27	3
28	3
29	1
30	1
31	2
32	2
33	2
34	5
35	2
36	2
37	2
38	5
39	1
40	3
41	4
42	4
43	3
44	3
45	3
46	5
47	4
48	3
49	3
50	3
51	2
52	2
53	6
54	2
55	3
56	4
57	2
58	4
59	2
60	3
61	3
62	2
63	4
64	4
65	4
66	3
67	3
68	3
69	3
70	4
71	2
72	3
73	4
74	2
75	2
76	5
77	3
78	2
79	2
80	4
81	4
82	2
83	2
84	1
85	6
86	4
87	2
88	5
89	3
90	5
91	1
92	2
93	2
94	3
95	4
96	2
97	3
98	3
99	3
100	5

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

cp's OEIS Frontend

A123369 Number of prime divisors of n-th Conway and Guy second-order harmonic number (counted with multiplicity).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	1
7	2
8	2
9	1
10	3
11	2
12	2
13	2
14	3
15	2
16	4
17	3
18	1
19	2
20	5
21	3
22	3
23	2
24	2
25	1
26	3
27	3
28	3
29	1
30	1
31	2
32	2
33	2
34	5
35	2
36	2
37	2
38	5
39	1
40	3
41	4
42	4
43	3
44	3
45	3
46	5
47	4
48	3
49	3
50	3
51	2
52	2
53	6
54	2
55	3
56	4
57	2
58	4
59	2
60	3
61	3
62	2
63	4
64	4
65	4
66	3
67	3
68	3
69	3
70	4
71	2
72	3
73	4
74	2
75	2
76	5
77	3
78	2
79	2
80	4
81	4
82	2
83	2
84	1
85	6
86	4
87	2
88	5
89	3
90	5
91	1
92	2
93	2
94	3
95	4
96	2
97	3
98	3
99	3
100	5

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	1
7	2
8	2
9	1
10	3
11	2
12	2
13	2
14	3
15	2
16	4
17	3
18	1
19	2
20	5
21	3
22	3
23	2
24	2
25	1
26	3
27	3
28	3
29	1
30	1
31	2
32	2
33	2
34	5
35	2
36	2
37	2
38	5
39	1
40	3
41	4
42	4
43	3
44	3
45	3
46	5
47	4
48	3
49	3
50	3
51	2
52	2
53	6
54	2
55	3
56	4
57	2
58	4
59	2
60	3
61	3
62	2
63	4
64	4
65	4
66	3
67	3
68	3
69	3
70	4
71	2
72	3
73	4
74	2
75	2
76	5
77	3
78	2
79	2
80	4
81	4
82	2
83	2
84	1
85	6
86	4
87	2
88	5
89	3
90	5
91	1
92	2
93	2
94	3
95	4
96	2
97	3
98	3
99	3
100	5

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	1
7	2
8	2
9	1
10	3
11	2
12	2
13	2
14	3
15	2
16	4
17	3
18	1
19	2
20	5
21	3
22	3
23	2
24	2
25	1
26	3
27	3
28	3
29	1
30	1
31	2
32	2
33	2
34	5
35	2
36	2
37	2
38	5
39	1
40	3
41	4
42	4
43	3
44	3
45	3
46	5
47	4
48	3
49	3
50	3
51	2
52	2
53	6
54	2
55	3
56	4
57	2
58	4
59	2
60	3
61	3
62	2
63	4
64	4
65	4
66	3
67	3
68	3
69	3
70	4
71	2
72	3
73	4
74	2
75	2
76	5
77	3
78	2
79	2
80	4
81	4
82	2
83	2
84	1
85	6
86	4
87	2
88	5
89	3
90	5
91	1
92	2
93	2
94	3
95	4
96	2
97	3
98	3
99	3
100	5