A140180 - cp's OEIS frontend

A140180 A number n is included if the smallest prime that is congruent to 1 (mod n) is <= the smallest prime that is congruent to -1 (mod n).

n	a(n)
1	1
2	2
3	5
4	10
5	11
6	13
7	16
8	22
9	23
10	25
11	26
12	28
13	29
14	33
15	35
16	36
17	39
18	40
19	41
20	43
21	46
22	50
23	52
24	53
25	56
26	58
27	61
28	63
29	65
30	66
31	67
32	70
33	73
34	78
35	81
36	82
37	83
38	86
39	88
40	89
41	92
42	93
43	95
44	96
45	100
46	101
47	105
48	106
49	111
50	112
51	113
52	116
53	119
54	122
55	124
56	125
57	126
58	127
59	130
60	131
61	134
62	136
63	145

[1, 2, 5, 10, 11, 13, 16, 22, 23, 25, 26, 28, 29, 33, 35, 36, 39, 40, 41, 43, 46, 50, 52, 53, 56, 58, 61, 63, 65, 66, 67, 70, 73, 78, 81, 82, 83, 86, 88, 89, 92, 93, 95, 96, 100, 101, 105, 106, 111, 112, 113, 116, 119, 122, 124, 125, 126, 127, 130, 131, 134, 136, 145]

cp's OEIS Frontend

A140180 A number n is included if the smallest prime that is congruent to 1 (mod n) is <= the smallest prime that is congruent to -1 (mod n).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	10
5	11
6	13
7	16
8	22
9	23
10	25
11	26
12	28
13	29
14	33
15	35
16	36
17	39
18	40
19	41
20	43
21	46
22	50
23	52
24	53
25	56
26	58
27	61
28	63
29	65
30	66
31	67
32	70
33	73
34	78
35	81
36	82
37	83
38	86
39	88
40	89
41	92
42	93
43	95
44	96
45	100
46	101
47	105
48	106
49	111
50	112
51	113
52	116
53	119
54	122
55	124
56	125
57	126
58	127
59	130
60	131
61	134
62	136
63	145

n	a(n)
1	1
2	2
3	5
4	10
5	11
6	13
7	16
8	22
9	23
10	25
11	26
12	28
13	29
14	33
15	35
16	36
17	39
18	40
19	41
20	43
21	46
22	50
23	52
24	53
25	56
26	58
27	61
28	63
29	65
30	66
31	67
32	70
33	73
34	78
35	81
36	82
37	83
38	86
39	88
40	89
41	92
42	93
43	95
44	96
45	100
46	101
47	105
48	106
49	111
50	112
51	113
52	116
53	119
54	122
55	124
56	125
57	126
58	127
59	130
60	131
61	134
62	136
63	145

n	a(n)
1	1
2	2
3	5
4	10
5	11
6	13
7	16
8	22
9	23
10	25
11	26
12	28
13	29
14	33
15	35
16	36
17	39
18	40
19	41
20	43
21	46
22	50
23	52
24	53
25	56
26	58
27	61
28	63
29	65
30	66
31	67
32	70
33	73
34	78
35	81
36	82
37	83
38	86
39	88
40	89
41	92
42	93
43	95
44	96
45	100
46	101
47	105
48	106
49	111
50	112
51	113
52	116
53	119
54	122
55	124
56	125
57	126
58	127
59	130
60	131
61	134
62	136
63	145