A171820 - cp's OEIS frontend

A171820 Numbers n such that the n-th prime is of the form 3k + 1/2 +- 1/2.

n	a(n)
1	2
2	4
3	6
4	8
5	11
6	12
7	14
8	18
9	19
10	21
11	22
12	25
13	27
14	29
15	31
16	34
17	36
18	37
19	38
20	42
21	44
22	46
23	47
24	48
25	50
26	53
27	58
28	59
29	61
30	63
31	65
32	67
33	68
34	70
35	73
36	74
37	75
38	78
39	80
40	82
41	84
42	85
43	88
44	90
45	93
46	95
47	99
48	100
49	101
50	105
51	106
52	110
53	111
54	112
55	114
56	115
57	117
58	121
59	122
60	125
61	127
62	129
63	130
64	131
65	133

[2, 4, 6, 8, 11, 12, 14, 18, 19, 21, 22, 25, 27, 29, 31, 34, 36, 37, 38, 42, 44, 46, 47, 48, 50, 53, 58, 59, 61, 63, 65, 67, 68, 70, 73, 74, 75, 78, 80, 82, 84, 85, 88, 90, 93, 95, 99, 100, 101, 105, 106, 110, 111, 112, 114, 115, 117, 121, 122, 125, 127, 129, 130, 131, 133]

cp's OEIS Frontend

A171820 Numbers n such that the n-th prime is of the form 3k + 1/2 +- 1/2.

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	11
6	12
7	14
8	18
9	19
10	21
11	22
12	25
13	27
14	29
15	31
16	34
17	36
18	37
19	38
20	42
21	44
22	46
23	47
24	48
25	50
26	53
27	58
28	59
29	61
30	63
31	65
32	67
33	68
34	70
35	73
36	74
37	75
38	78
39	80
40	82
41	84
42	85
43	88
44	90
45	93
46	95
47	99
48	100
49	101
50	105
51	106
52	110
53	111
54	112
55	114
56	115
57	117
58	121
59	122
60	125
61	127
62	129
63	130
64	131
65	133

n	a(n)
1	2
2	4
3	6
4	8
5	11
6	12
7	14
8	18
9	19
10	21
11	22
12	25
13	27
14	29
15	31
16	34
17	36
18	37
19	38
20	42
21	44
22	46
23	47
24	48
25	50
26	53
27	58
28	59
29	61
30	63
31	65
32	67
33	68
34	70
35	73
36	74
37	75
38	78
39	80
40	82
41	84
42	85
43	88
44	90
45	93
46	95
47	99
48	100
49	101
50	105
51	106
52	110
53	111
54	112
55	114
56	115
57	117
58	121
59	122
60	125
61	127
62	129
63	130
64	131
65	133

n	a(n)
1	2
2	4
3	6
4	8
5	11
6	12
7	14
8	18
9	19
10	21
11	22
12	25
13	27
14	29
15	31
16	34
17	36
18	37
19	38
20	42
21	44
22	46
23	47
24	48
25	50
26	53
27	58
28	59
29	61
30	63
31	65
32	67
33	68
34	70
35	73
36	74
37	75
38	78
39	80
40	82
41	84
42	85
43	88
44	90
45	93
46	95
47	99
48	100
49	101
50	105
51	106
52	110
53	111
54	112
55	114
56	115
57	117
58	121
59	122
60	125
61	127
62	129
63	130
64	131
65	133