A143225 - cp's OEIS frontend

A143225 Number of primes between n^2 and (n+1)^2, if equal to the number of primes between n and 2n.

n	a(n)
1	0
2	3
3	9
4	9
5	10
6	10
7	16
8	20
9	19
10	21
11	23
12	23
13	24
14	25
15	28
16	31
17	32
18	36
19	38
20	56
21	57
22	59
23	59
24	62
25	65
26	71
27	75
28	84
29	88
30	88
31	96
32	102
33	107
34	115
35	116
36	119
37	120
38	126
39	125
40	129
41	132
42	132
43	163
44	168
45	168
46	182
47	189
48	189
49	192
50	197
51	198
52	213
53	236

[0, 3, 9, 9, 10, 10, 16, 20, 19, 21, 23, 23, 24, 25, 28, 31, 32, 36, 38, 56, 57, 59, 59, 62, 65, 71, 75, 84, 88, 88, 96, 102, 107, 115, 116, 119, 120, 126, 125, 129, 132, 132, 163, 168, 168, 182, 189, 189, 192, 197, 198, 213, 236]

cp's OEIS Frontend

A143225 Number of primes between n^2 and (n+1)^2, if equal to the number of primes between n and 2n.

Table of values

List of values

n	a(n)
1	0
2	3
3	9
4	9
5	10
6	10
7	16
8	20
9	19
10	21
11	23
12	23
13	24
14	25
15	28
16	31
17	32
18	36
19	38
20	56
21	57
22	59
23	59
24	62
25	65
26	71
27	75
28	84
29	88
30	88
31	96
32	102
33	107
34	115
35	116
36	119
37	120
38	126
39	125
40	129
41	132
42	132
43	163
44	168
45	168
46	182
47	189
48	189
49	192
50	197
51	198
52	213
53	236

n	a(n)
1	0
2	3
3	9
4	9
5	10
6	10
7	16
8	20
9	19
10	21
11	23
12	23
13	24
14	25
15	28
16	31
17	32
18	36
19	38
20	56
21	57
22	59
23	59
24	62
25	65
26	71
27	75
28	84
29	88
30	88
31	96
32	102
33	107
34	115
35	116
36	119
37	120
38	126
39	125
40	129
41	132
42	132
43	163
44	168
45	168
46	182
47	189
48	189
49	192
50	197
51	198
52	213
53	236

n	a(n)
1	0
2	3
3	9
4	9
5	10
6	10
7	16
8	20
9	19
10	21
11	23
12	23
13	24
14	25
15	28
16	31
17	32
18	36
19	38
20	56
21	57
22	59
23	59
24	62
25	65
26	71
27	75
28	84
29	88
30	88
31	96
32	102
33	107
34	115
35	116
36	119
37	120
38	126
39	125
40	129
41	132
42	132
43	163
44	168
45	168
46	182
47	189
48	189
49	192
50	197
51	198
52	213
53	236