A177951 - cp's OEIS frontend

A177951 PrimePi(A066903(n)), the index of A066903(n) in the primes.

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

[4, 1, 3, 2, 8, 7, 7, 4, 4, 9, 3, 6, 6, 29, 10, 5, 5, 5, 8, 8, 8, 8, 28, 28, 7, 7, 7, 7, 30, 30, 30, 4, 13, 13, 27, 27, 9, 9, 9, 9, 9, 9, 9, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 26, 26, 6, 6, 31, 23, 31, 15, 15, 29, 15, 29, 29, 29, 15, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 21, 12, 12, 12]

cp's OEIS Frontend

A177951 PrimePi(A066903(n)), the index of A066903(n) in the primes.

Table of values

List of values

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

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

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