A318366 - cp's OEIS frontend

A318366 a(n) = Sum_{d|n} bigomega(d)*bigomega(n/d).

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

[0, 0, 0, 1, 0, 2, 0, 4, 1, 2, 0, 8, 0, 2, 2, 10, 0, 8, 0, 8, 2, 2, 0, 20, 1, 2, 4, 8, 0, 12, 0, 20, 2, 2, 2, 24, 0, 2, 2, 20, 0, 12, 0, 8, 8, 2, 0, 40, 1, 8, 2, 8, 0, 20, 2, 20, 2, 2, 0, 34, 0, 2, 8, 35, 2, 12, 0, 8, 2, 12, 0, 52, 0, 2, 8, 8, 2, 12, 0, 40, 10, 2, 0, 34, 2, 2, 2, 20, 0, 34, 2, 8, 2, 2, 2]

cp's OEIS Frontend

A318366 a(n) = Sum_{d|n} bigomega(d)*bigomega(n/d).

Table of values

List of values

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

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

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