A250622 - cp's OEIS frontend

A250622 a(n) = floor(n*log(prime(n)))-prime(n), n >= 1.

n	a(n)
1	-2
2	-1
3	-1
4	0
5	0
6	2
7	2
8	4
9	5
10	4
11	6
12	6
13	7
14	9
15	10
16	10
17	10
18	12
19	12
20	14
21	17
22	17
23	18
24	18
25	17
26	18
27	22
28	23
29	27
30	28
31	23
32	25
33	25
34	28
35	26
36	29
37	30
38	30
39	32
40	33
41	33
42	37
43	34
44	38
45	40
46	44
47	40
48	36
49	38
50	42
51	45
52	45
53	49
54	47
55	48
56	49
57	49
58	53
59	54
60	57
61	61
62	59
63	53
64	56
65	60
66	63
67	57
68	58
69	56
70	60
71	63
72	64
73	64
74	65
75	66
76	69
77	70
78	69

[-2, -1, -1, 0, 0, 2, 2, 4, 5, 4, 6, 6, 7, 9, 10, 10, 10, 12, 12, 14, 17, 17, 18, 18, 17, 18, 22, 23, 27, 28, 23, 25, 25, 28, 26, 29, 30, 30, 32, 33, 33, 37, 34, 38, 40, 44, 40, 36, 38, 42, 45, 45, 49, 47, 48, 49, 49, 53, 54, 57, 61, 59, 53, 56, 60, 63, 57, 58, 56, 60, 63, 64, 64, 65, 66, 69, 70, 69]

cp's OEIS Frontend

A250622 a(n) = floor(n*log(prime(n)))-prime(n), n >= 1.

Table of values

List of values

n	a(n)
1	-2
2	-1
3	-1
4	0
5	0
6	2
7	2
8	4
9	5
10	4
11	6
12	6
13	7
14	9
15	10
16	10
17	10
18	12
19	12
20	14
21	17
22	17
23	18
24	18
25	17
26	18
27	22
28	23
29	27
30	28
31	23
32	25
33	25
34	28
35	26
36	29
37	30
38	30
39	32
40	33
41	33
42	37
43	34
44	38
45	40
46	44
47	40
48	36
49	38
50	42
51	45
52	45
53	49
54	47
55	48
56	49
57	49
58	53
59	54
60	57
61	61
62	59
63	53
64	56
65	60
66	63
67	57
68	58
69	56
70	60
71	63
72	64
73	64
74	65
75	66
76	69
77	70
78	69

n	a(n)
1	-2
2	-1
3	-1
4	0
5	0
6	2
7	2
8	4
9	5
10	4
11	6
12	6
13	7
14	9
15	10
16	10
17	10
18	12
19	12
20	14
21	17
22	17
23	18
24	18
25	17
26	18
27	22
28	23
29	27
30	28
31	23
32	25
33	25
34	28
35	26
36	29
37	30
38	30
39	32
40	33
41	33
42	37
43	34
44	38
45	40
46	44
47	40
48	36
49	38
50	42
51	45
52	45
53	49
54	47
55	48
56	49
57	49
58	53
59	54
60	57
61	61
62	59
63	53
64	56
65	60
66	63
67	57
68	58
69	56
70	60
71	63
72	64
73	64
74	65
75	66
76	69
77	70
78	69

n	a(n)
1	-2
2	-1
3	-1
4	0
5	0
6	2
7	2
8	4
9	5
10	4
11	6
12	6
13	7
14	9
15	10
16	10
17	10
18	12
19	12
20	14
21	17
22	17
23	18
24	18
25	17
26	18
27	22
28	23
29	27
30	28
31	23
32	25
33	25
34	28
35	26
36	29
37	30
38	30
39	32
40	33
41	33
42	37
43	34
44	38
45	40
46	44
47	40
48	36
49	38
50	42
51	45
52	45
53	49
54	47
55	48
56	49
57	49
58	53
59	54
60	57
61	61
62	59
63	53
64	56
65	60
66	63
67	57
68	58
69	56
70	60
71	63
72	64
73	64
74	65
75	66
76	69
77	70
78	69