A086861 - cp's OEIS frontend

A086861 Floor( p/log(p) ), where p = prime(n).

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

[2, 2, 3, 3, 4, 5, 6, 6, 7, 8, 9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 17, 18, 18, 19, 21, 21, 22, 22, 23, 23, 26, 26, 27, 28, 29, 30, 31, 31, 32, 33, 34, 34, 36, 36, 37, 37, 39, 41, 41, 42, 42, 43, 43, 45, 46, 47, 48, 48, 49, 49, 50, 51, 53, 54, 54, 55, 57, 57, 59, 59, 60, 61, 62]

cp's OEIS Frontend

A086861 Floor( p/log(p) ), where p = prime(n).

Table of values

List of values

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

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

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