A370329 - cp's OEIS frontend

A370329 a(n) is the number of coreful divisors of the n-th powerful number that are also powerful numbers.

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

[1, 1, 2, 1, 3, 1, 2, 4, 1, 1, 5, 2, 3, 1, 2, 1, 2, 6, 3, 1, 1, 2, 4, 1, 4, 7, 4, 1, 3, 2, 1, 2, 3, 6, 1, 1, 2, 8, 1, 5, 3, 6, 2, 1, 5, 3, 4, 1, 8, 1, 1, 2, 4, 4, 9, 1, 2, 6, 1, 1, 9, 2, 2, 2, 1, 2, 1, 1, 4, 5, 1, 10, 1, 2, 1, 3, 8, 6, 3, 10, 1, 6, 2, 1, 7, 2, 3]

cp's OEIS Frontend

A370329 a(n) is the number of coreful divisors of the n-th powerful number that are also powerful numbers.

Table of values

List of values

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

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

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