A176004 - cp's OEIS frontend

A176004 (n-th prime > 3) minus (n-th semiprime).

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	4
7	2
8	7
9	6
10	11
11	8
12	9
13	12
14	15
15	20
16	15
17	18
18	20
19	18
20	22
21	25
22	27
23	32
24	32
25	29
26	30
27	27
28	28
29	41
30	44
31	46
32	46
33	55
34	56
35	51
36	52
37	52
38	55
39	60
40	60
41	69
42	70
43	68
44	66
45	77
46	82
47	85
48	86
49	88
50	93
51	86
52	93
53	98
54	102
55	103
56	102
57	100
58	103
59	100
60	108
61	120
62	117
63	112
64	115
65	128
66	132
67	141
68	140
69	140
70	145

[1, 1, 2, 3, 3, 4, 2, 7, 6, 11, 8, 9, 12, 15, 20, 15, 18, 20, 18, 22, 25, 27, 32, 32, 29, 30, 27, 28, 41, 44, 46, 46, 55, 56, 51, 52, 52, 55, 60, 60, 69, 70, 68, 66, 77, 82, 85, 86, 88, 93, 86, 93, 98, 102, 103, 102, 100, 103, 100, 108, 120, 117, 112, 115, 128, 132, 141, 140, 140, 145]

cp's OEIS Frontend

A176004 (n-th prime > 3) minus (n-th semiprime).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	4
7	2
8	7
9	6
10	11
11	8
12	9
13	12
14	15
15	20
16	15
17	18
18	20
19	18
20	22
21	25
22	27
23	32
24	32
25	29
26	30
27	27
28	28
29	41
30	44
31	46
32	46
33	55
34	56
35	51
36	52
37	52
38	55
39	60
40	60
41	69
42	70
43	68
44	66
45	77
46	82
47	85
48	86
49	88
50	93
51	86
52	93
53	98
54	102
55	103
56	102
57	100
58	103
59	100
60	108
61	120
62	117
63	112
64	115
65	128
66	132
67	141
68	140
69	140
70	145

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	4
7	2
8	7
9	6
10	11
11	8
12	9
13	12
14	15
15	20
16	15
17	18
18	20
19	18
20	22
21	25
22	27
23	32
24	32
25	29
26	30
27	27
28	28
29	41
30	44
31	46
32	46
33	55
34	56
35	51
36	52
37	52
38	55
39	60
40	60
41	69
42	70
43	68
44	66
45	77
46	82
47	85
48	86
49	88
50	93
51	86
52	93
53	98
54	102
55	103
56	102
57	100
58	103
59	100
60	108
61	120
62	117
63	112
64	115
65	128
66	132
67	141
68	140
69	140
70	145

n	a(n)
1	1
2	1
3	2
4	3
5	3
6	4
7	2
8	7
9	6
10	11
11	8
12	9
13	12
14	15
15	20
16	15
17	18
18	20
19	18
20	22
21	25
22	27
23	32
24	32
25	29
26	30
27	27
28	28
29	41
30	44
31	46
32	46
33	55
34	56
35	51
36	52
37	52
38	55
39	60
40	60
41	69
42	70
43	68
44	66
45	77
46	82
47	85
48	86
49	88
50	93
51	86
52	93
53	98
54	102
55	103
56	102
57	100
58	103
59	100
60	108
61	120
62	117
63	112
64	115
65	128
66	132
67	141
68	140
69	140
70	145