A247665 - cp's OEIS frontend

A247665 a(1)=2; thereafter a(n) is the smallest number >= 2 not yet used which is compatible with the condition that a(n) is relatively prime to the next n terms.

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	8
8	11
9	13
10	17
11	19
12	23
13	15
14	29
15	14
16	31
17	37
18	41
19	43
20	47
21	53
22	59
23	61
24	67
25	71
26	73
27	25
28	27
29	79
30	83
31	16
32	49
33	89
34	97
35	101
36	103
37	107
38	109
39	113
40	121
41	127
42	131
43	137
44	139
45	149
46	151
47	157
48	163
49	167
50	169
51	173
52	179
53	181
54	191
55	85
56	193
57	57
58	197
59	199
60	211
61	223

[2, 3, 4, 5, 7, 9, 8, 11, 13, 17, 19, 23, 15, 29, 14, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 25, 27, 79, 83, 16, 49, 89, 97, 101, 103, 107, 109, 113, 121, 127, 131, 137, 139, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 85, 193, 57, 197, 199, 211, 223]

cp's OEIS Frontend

A247665 a(1)=2; thereafter a(n) is the smallest number >= 2 not yet used which is compatible with the condition that a(n) is relatively prime to the next n terms.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	8
8	11
9	13
10	17
11	19
12	23
13	15
14	29
15	14
16	31
17	37
18	41
19	43
20	47
21	53
22	59
23	61
24	67
25	71
26	73
27	25
28	27
29	79
30	83
31	16
32	49
33	89
34	97
35	101
36	103
37	107
38	109
39	113
40	121
41	127
42	131
43	137
44	139
45	149
46	151
47	157
48	163
49	167
50	169
51	173
52	179
53	181
54	191
55	85
56	193
57	57
58	197
59	199
60	211
61	223

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	8
8	11
9	13
10	17
11	19
12	23
13	15
14	29
15	14
16	31
17	37
18	41
19	43
20	47
21	53
22	59
23	61
24	67
25	71
26	73
27	25
28	27
29	79
30	83
31	16
32	49
33	89
34	97
35	101
36	103
37	107
38	109
39	113
40	121
41	127
42	131
43	137
44	139
45	149
46	151
47	157
48	163
49	167
50	169
51	173
52	179
53	181
54	191
55	85
56	193
57	57
58	197
59	199
60	211
61	223

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	8
8	11
9	13
10	17
11	19
12	23
13	15
14	29
15	14
16	31
17	37
18	41
19	43
20	47
21	53
22	59
23	61
24	67
25	71
26	73
27	25
28	27
29	79
30	83
31	16
32	49
33	89
34	97
35	101
36	103
37	107
38	109
39	113
40	121
41	127
42	131
43	137
44	139
45	149
46	151
47	157
48	163
49	167
50	169
51	173
52	179
53	181
54	191
55	85
56	193
57	57
58	197
59	199
60	211
61	223