A092494 - cp's OEIS frontend

A092494 a(n) = Sum_{p prime and p<=n} ceiling(n/p).

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	7
7	10
8	11
9	12
10	13
11	16
12	17
13	20
14	21
15	23
16	25
17	27
18	28
19	31
20	32
21	34
22	36
23	39
24	40
25	42
26	43
27	45
28	46
29	49
30	50
31	54
32	55
33	56
34	58
35	60
36	62
37	65
38	66
39	68
40	70
41	73
42	74
43	78
44	79
45	81
46	83
47	86
48	87
49	89
50	90
51	92
52	94
53	97
54	98
55	100
56	102
57	104
58	106
59	109
60	110
61	114
62	115
63	117
64	119
65	120
66	122

[0, 1, 3, 4, 6, 7, 10, 11, 12, 13, 16, 17, 20, 21, 23, 25, 27, 28, 31, 32, 34, 36, 39, 40, 42, 43, 45, 46, 49, 50, 54, 55, 56, 58, 60, 62, 65, 66, 68, 70, 73, 74, 78, 79, 81, 83, 86, 87, 89, 90, 92, 94, 97, 98, 100, 102, 104, 106, 109, 110, 114, 115, 117, 119, 120, 122]

cp's OEIS Frontend

A092494 a(n) = Sum_{p prime and p<=n} ceiling(n/p).

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	7
7	10
8	11
9	12
10	13
11	16
12	17
13	20
14	21
15	23
16	25
17	27
18	28
19	31
20	32
21	34
22	36
23	39
24	40
25	42
26	43
27	45
28	46
29	49
30	50
31	54
32	55
33	56
34	58
35	60
36	62
37	65
38	66
39	68
40	70
41	73
42	74
43	78
44	79
45	81
46	83
47	86
48	87
49	89
50	90
51	92
52	94
53	97
54	98
55	100
56	102
57	104
58	106
59	109
60	110
61	114
62	115
63	117
64	119
65	120
66	122

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	7
7	10
8	11
9	12
10	13
11	16
12	17
13	20
14	21
15	23
16	25
17	27
18	28
19	31
20	32
21	34
22	36
23	39
24	40
25	42
26	43
27	45
28	46
29	49
30	50
31	54
32	55
33	56
34	58
35	60
36	62
37	65
38	66
39	68
40	70
41	73
42	74
43	78
44	79
45	81
46	83
47	86
48	87
49	89
50	90
51	92
52	94
53	97
54	98
55	100
56	102
57	104
58	106
59	109
60	110
61	114
62	115
63	117
64	119
65	120
66	122

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	7
7	10
8	11
9	12
10	13
11	16
12	17
13	20
14	21
15	23
16	25
17	27
18	28
19	31
20	32
21	34
22	36
23	39
24	40
25	42
26	43
27	45
28	46
29	49
30	50
31	54
32	55
33	56
34	58
35	60
36	62
37	65
38	66
39	68
40	70
41	73
42	74
43	78
44	79
45	81
46	83
47	86
48	87
49	89
50	90
51	92
52	94
53	97
54	98
55	100
56	102
57	104
58	106
59	109
60	110
61	114
62	115
63	117
64	119
65	120
66	122