A192515 - cp's OEIS frontend

A192515 Number of primes in the range [2^n-n^2, 2^n].

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	8
6	9
7	10
8	11
9	15
10	15
11	16
12	16
13	18
14	19
15	20
16	21
17	23
18	23
19	31
20	24
21	34
22	28
23	27
24	35
25	32
26	41
27	38
28	46
29	45
30	38
31	44
32	36
33	49
34	51
35	43
36	61
37	33
38	48
39	58
40	42
41	62
42	67
43	59
44	63
45	70
46	57
47	63
48	73
49	68
50	85
51	74
52	75
53	73
54	77
55	86
56	85
57	74
58	94
59	89
60	83
61	89
62	94
63	93
64	97
65	102

[0, 1, 2, 4, 6, 8, 9, 10, 11, 15, 15, 16, 16, 18, 19, 20, 21, 23, 23, 31, 24, 34, 28, 27, 35, 32, 41, 38, 46, 45, 38, 44, 36, 49, 51, 43, 61, 33, 48, 58, 42, 62, 67, 59, 63, 70, 57, 63, 73, 68, 85, 74, 75, 73, 77, 86, 85, 74, 94, 89, 83, 89, 94, 93, 97, 102]

cp's OEIS Frontend

A192515 Number of primes in the range [2^n-n^2, 2^n].

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	8
6	9
7	10
8	11
9	15
10	15
11	16
12	16
13	18
14	19
15	20
16	21
17	23
18	23
19	31
20	24
21	34
22	28
23	27
24	35
25	32
26	41
27	38
28	46
29	45
30	38
31	44
32	36
33	49
34	51
35	43
36	61
37	33
38	48
39	58
40	42
41	62
42	67
43	59
44	63
45	70
46	57
47	63
48	73
49	68
50	85
51	74
52	75
53	73
54	77
55	86
56	85
57	74
58	94
59	89
60	83
61	89
62	94
63	93
64	97
65	102

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	8
6	9
7	10
8	11
9	15
10	15
11	16
12	16
13	18
14	19
15	20
16	21
17	23
18	23
19	31
20	24
21	34
22	28
23	27
24	35
25	32
26	41
27	38
28	46
29	45
30	38
31	44
32	36
33	49
34	51
35	43
36	61
37	33
38	48
39	58
40	42
41	62
42	67
43	59
44	63
45	70
46	57
47	63
48	73
49	68
50	85
51	74
52	75
53	73
54	77
55	86
56	85
57	74
58	94
59	89
60	83
61	89
62	94
63	93
64	97
65	102

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	8
6	9
7	10
8	11
9	15
10	15
11	16
12	16
13	18
14	19
15	20
16	21
17	23
18	23
19	31
20	24
21	34
22	28
23	27
24	35
25	32
26	41
27	38
28	46
29	45
30	38
31	44
32	36
33	49
34	51
35	43
36	61
37	33
38	48
39	58
40	42
41	62
42	67
43	59
44	63
45	70
46	57
47	63
48	73
49	68
50	85
51	74
52	75
53	73
54	77
55	86
56	85
57	74
58	94
59	89
60	83
61	89
62	94
63	93
64	97
65	102