A140181 - cp's OEIS frontend

A140181 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	3
4	4
5	6
6	7
7	8
8	9
9	12
10	14
11	15
12	17
13	18
14	19
15	20
16	21
17	24
18	27
19	30
20	31
21	32
22	34
23	37
24	38
25	42
26	44
27	45
28	47
29	48
30	49
31	51
32	54
33	55
34	57
35	59
36	60
37	62
38	64
39	68
40	69
41	71
42	72
43	74
44	75
45	76
46	77
47	79
48	80
49	84
50	85
51	87
52	90
53	91
54	94
55	97
56	98
57	99
58	102
59	103
60	104
61	107
62	108
63	109
64	110
65	114
66	115
67	117

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 15, 17, 18, 19, 20, 21, 24, 27, 30, 31, 32, 34, 37, 38, 42, 44, 45, 47, 48, 49, 51, 54, 55, 57, 59, 60, 62, 64, 68, 69, 71, 72, 74, 75, 76, 77, 79, 80, 84, 85, 87, 90, 91, 94, 97, 98, 99, 102, 103, 104, 107, 108, 109, 110, 114, 115, 117]

cp's OEIS Frontend

A140181 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	3
4	4
5	6
6	7
7	8
8	9
9	12
10	14
11	15
12	17
13	18
14	19
15	20
16	21
17	24
18	27
19	30
20	31
21	32
22	34
23	37
24	38
25	42
26	44
27	45
28	47
29	48
30	49
31	51
32	54
33	55
34	57
35	59
36	60
37	62
38	64
39	68
40	69
41	71
42	72
43	74
44	75
45	76
46	77
47	79
48	80
49	84
50	85
51	87
52	90
53	91
54	94
55	97
56	98
57	99
58	102
59	103
60	104
61	107
62	108
63	109
64	110
65	114
66	115
67	117

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	8
8	9
9	12
10	14
11	15
12	17
13	18
14	19
15	20
16	21
17	24
18	27
19	30
20	31
21	32
22	34
23	37
24	38
25	42
26	44
27	45
28	47
29	48
30	49
31	51
32	54
33	55
34	57
35	59
36	60
37	62
38	64
39	68
40	69
41	71
42	72
43	74
44	75
45	76
46	77
47	79
48	80
49	84
50	85
51	87
52	90
53	91
54	94
55	97
56	98
57	99
58	102
59	103
60	104
61	107
62	108
63	109
64	110
65	114
66	115
67	117

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	8
8	9
9	12
10	14
11	15
12	17
13	18
14	19
15	20
16	21
17	24
18	27
19	30
20	31
21	32
22	34
23	37
24	38
25	42
26	44
27	45
28	47
29	48
30	49
31	51
32	54
33	55
34	57
35	59
36	60
37	62
38	64
39	68
40	69
41	71
42	72
43	74
44	75
45	76
46	77
47	79
48	80
49	84
50	85
51	87
52	90
53	91
54	94
55	97
56	98
57	99
58	102
59	103
60	104
61	107
62	108
63	109
64	110
65	114
66	115
67	117