A247485 - cp's OEIS frontend

A247485 Integer part of 2*sqrt(prime(n)) + 1.

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

[3, 4, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 13, 14, 14, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 21, 21, 21, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26, 26, 27, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 31, 31, 32, 32, 33, 33, 33, 33, 34, 34, 34, 35, 36, 36, 36, 36, 37]

cp's OEIS Frontend

A247485 Integer part of 2*sqrt(prime(n)) + 1.

Table of values

List of values

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

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

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