A159804 - cp's OEIS frontend

A159804 Number of primes q with (2n-1)^2+1 <= q < (2n)^2-(2n-1).

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

[1, 1, 1, 1, 2, 2, 3, 4, 1, 3, 4, 2, 4, 4, 4, 5, 6, 5, 3, 6, 5, 7, 6, 6, 6, 5, 7, 6, 7, 8, 7, 8, 11, 8, 8, 8, 7, 11, 4, 11, 9, 10, 9, 11, 8, 10, 13, 9, 14, 12, 11, 12, 12, 11, 15, 12, 9, 13, 15, 8, 14, 13, 16, 12, 14, 11, 11, 15, 9, 16, 16, 11, 14, 14, 13, 13, 13]

cp's OEIS Frontend

A159804 Number of primes q with (2n-1)^2+1 <= q < (2n)^2-(2n-1).

Table of values

List of values

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

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

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