A182861 - cp's OEIS frontend

A182861 Number of distinct prime signatures represented among the unitary divisors of A025487(n).

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

[1, 2, 2, 3, 2, 4, 2, 4, 4, 2, 3, 4, 6, 2, 4, 4, 6, 2, 4, 6, 4, 5, 3, 6, 2, 4, 8, 4, 8, 4, 6, 2, 4, 8, 4, 8, 4, 4, 6, 2, 6, 4, 9, 3, 8, 4, 8, 4, 6, 6, 2, 8, 4, 6, 12, 4, 8, 4, 8, 4, 6, 6, 2, 8, 4, 10, 12, 4, 6, 8, 4, 8, 6, 8, 4, 6, 9, 6, 3, 2, 8, 4, 10, 12, 4]

cp's OEIS Frontend

A182861 Number of distinct prime signatures represented among the unitary divisors of A025487(n).

Table of values

List of values

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

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

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