A306289 - cp's OEIS frontend

A306289 The smallest prime factor of numbers greater than 1 and coprime to 6.

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	5
9	29
10	31
11	5
12	37
13	41
14	43
15	47
16	7
17	53
18	5
19	59
20	61
21	5
22	67
23	71
24	73
25	7
26	79
27	83
28	5
29	89
30	7
31	5
32	97
33	101
34	103
35	107
36	109
37	113
38	5
39	7
40	11
41	5
42	127
43	131
44	7
45	137
46	139
47	11
48	5
49	149
50	151
51	5
52	157
53	7
54	163
55	167
56	13
57	173
58	5
59	179
60	181
61	5
62	11
63	191
64	193

[5, 7, 11, 13, 17, 19, 23, 5, 29, 31, 5, 37, 41, 43, 47, 7, 53, 5, 59, 61, 5, 67, 71, 73, 7, 79, 83, 5, 89, 7, 5, 97, 101, 103, 107, 109, 113, 5, 7, 11, 5, 127, 131, 7, 137, 139, 11, 5, 149, 151, 5, 157, 7, 163, 167, 13, 173, 5, 179, 181, 5, 11, 191, 193]

cp's OEIS Frontend

A306289 The smallest prime factor of numbers greater than 1 and coprime to 6.

Table of values

List of values

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	5
9	29
10	31
11	5
12	37
13	41
14	43
15	47
16	7
17	53
18	5
19	59
20	61
21	5
22	67
23	71
24	73
25	7
26	79
27	83
28	5
29	89
30	7
31	5
32	97
33	101
34	103
35	107
36	109
37	113
38	5
39	7
40	11
41	5
42	127
43	131
44	7
45	137
46	139
47	11
48	5
49	149
50	151
51	5
52	157
53	7
54	163
55	167
56	13
57	173
58	5
59	179
60	181
61	5
62	11
63	191
64	193

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	5
9	29
10	31
11	5
12	37
13	41
14	43
15	47
16	7
17	53
18	5
19	59
20	61
21	5
22	67
23	71
24	73
25	7
26	79
27	83
28	5
29	89
30	7
31	5
32	97
33	101
34	103
35	107
36	109
37	113
38	5
39	7
40	11
41	5
42	127
43	131
44	7
45	137
46	139
47	11
48	5
49	149
50	151
51	5
52	157
53	7
54	163
55	167
56	13
57	173
58	5
59	179
60	181
61	5
62	11
63	191
64	193

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	5
9	29
10	31
11	5
12	37
13	41
14	43
15	47
16	7
17	53
18	5
19	59
20	61
21	5
22	67
23	71
24	73
25	7
26	79
27	83
28	5
29	89
30	7
31	5
32	97
33	101
34	103
35	107
36	109
37	113
38	5
39	7
40	11
41	5
42	127
43	131
44	7
45	137
46	139
47	11
48	5
49	149
50	151
51	5
52	157
53	7
54	163
55	167
56	13
57	173
58	5
59	179
60	181
61	5
62	11
63	191
64	193