A330018 - cp's OEIS frontend

A330018 a(n) = Sum_{d|n} (bigomega(d) - omega(d)).

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

[0, 0, 0, 1, 0, 0, 0, 3, 1, 0, 0, 2, 0, 0, 0, 6, 0, 2, 0, 2, 0, 0, 0, 6, 1, 0, 3, 2, 0, 0, 0, 10, 0, 0, 0, 6, 0, 0, 0, 6, 0, 0, 0, 2, 2, 0, 0, 12, 1, 2, 0, 2, 0, 6, 0, 6, 0, 0, 0, 4, 0, 0, 2, 15, 0, 0, 0, 2, 0, 0, 0, 13, 0, 0, 2, 2, 0, 0, 0, 12, 6, 0, 0, 4, 0, 0, 0, 6, 0, 4]

cp's OEIS Frontend

A330018 a(n) = Sum_{d|n} (bigomega(d) - omega(d)).

Table of values

List of values

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

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

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