A083060 - cp's OEIS frontend

A083060 a(n) is the number of natural numbers k such that A078496(k) = prime(n), where prime(n) denotes the n-th prime.

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

[0, 0, 1, 2, 3, 2, 3, 3, 3, 3, 5, 3, 5, 4, 3, 4, 3, 6, 4, 5, 4, 4, 5, 4, 6, 4, 4, 5, 4, 4, 7, 4, 5, 7, 5, 6, 5, 5, 7, 4, 5, 6, 4, 5, 5, 5, 5, 6, 8, 4, 7, 4, 5, 6, 5, 4, 3, 8, 8, 5, 5, 5, 7, 7, 5, 5, 9, 4, 7, 8, 8, 6, 7, 4, 5, 7, 4, 7, 7, 6, 8, 7, 5, 5, 6, 7, 6]

cp's OEIS Frontend

A083060 a(n) is the number of natural numbers k such that A078496(k) = prime(n), where prime(n) denotes the n-th prime.

Table of values

List of values

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

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

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