A141241 - cp's OEIS frontend

A141241 a(n) = number of divisors of n-th positive integer with a nonprime number of divisors. a(n) = the number of divisors of A139118(n).

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

[1, 4, 4, 4, 6, 4, 4, 6, 6, 4, 4, 8, 4, 4, 6, 8, 6, 4, 4, 4, 9, 4, 4, 8, 8, 6, 6, 4, 10, 6, 4, 6, 8, 4, 8, 4, 4, 12, 4, 6, 4, 8, 6, 4, 8, 12, 4, 6, 6, 4, 8, 10, 4, 12, 4, 4, 4, 8, 12, 4, 6, 4, 4, 4, 12, 6, 6, 9, 8, 8, 8, 4, 12, 8, 4, 10, 8, 4, 6, 6, 4, 4, 16, 4, 4, 6, 4, 12, 8, 4, 8, 12, 4, 4, 8, 8, 8, 12, 4]

cp's OEIS Frontend

A141241 a(n) = number of divisors of n-th positive integer with a nonprime number of divisors. a(n) = the number of divisors of A139118(n).

Table of values

List of values

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

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

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