A274127 - cp's OEIS frontend

A274127 Numbers n for which 9 is a nontrivial quadratic residue mod n but 9 has only trivial quadratic residues +/- 3 mod each of the proper divisors of n.

n	a(n)
1	16
2	18
3	20
4	24
5	27
6	28
7	35
8	44
9	45
10	52
11	55
12	60
13	63
14	65
15	68
16	70
17	76
18	77
19	84
20	85
21	91
22	92
23	95
24	99
25	100
26	105
27	110
28	115
29	116
30	117
31	119
32	124
33	130
34	132
35	133
36	140
37	143
38	145
39	148
40	153
41	154
42	155
43	156
44	161
45	164
46	165
47	170
48	171
49	172
50	175
51	182
52	185
53	187
54	188
55	190
56	195
57	196
58	203

[16, 18, 20, 24, 27, 28, 35, 44, 45, 52, 55, 60, 63, 65, 68, 70, 76, 77, 84, 85, 91, 92, 95, 99, 100, 105, 110, 115, 116, 117, 119, 124, 130, 132, 133, 140, 143, 145, 148, 153, 154, 155, 156, 161, 164, 165, 170, 171, 172, 175, 182, 185, 187, 188, 190, 195, 196, 203]

cp's OEIS Frontend

A274127 Numbers n for which 9 is a nontrivial quadratic residue mod n but 9 has only trivial quadratic residues +/- 3 mod each of the proper divisors of n.

Table of values

List of values

n	a(n)
1	16
2	18
3	20
4	24
5	27
6	28
7	35
8	44
9	45
10	52
11	55
12	60
13	63
14	65
15	68
16	70
17	76
18	77
19	84
20	85
21	91
22	92
23	95
24	99
25	100
26	105
27	110
28	115
29	116
30	117
31	119
32	124
33	130
34	132
35	133
36	140
37	143
38	145
39	148
40	153
41	154
42	155
43	156
44	161
45	164
46	165
47	170
48	171
49	172
50	175
51	182
52	185
53	187
54	188
55	190
56	195
57	196
58	203

n	a(n)
1	16
2	18
3	20
4	24
5	27
6	28
7	35
8	44
9	45
10	52
11	55
12	60
13	63
14	65
15	68
16	70
17	76
18	77
19	84
20	85
21	91
22	92
23	95
24	99
25	100
26	105
27	110
28	115
29	116
30	117
31	119
32	124
33	130
34	132
35	133
36	140
37	143
38	145
39	148
40	153
41	154
42	155
43	156
44	161
45	164
46	165
47	170
48	171
49	172
50	175
51	182
52	185
53	187
54	188
55	190
56	195
57	196
58	203

n	a(n)
1	16
2	18
3	20
4	24
5	27
6	28
7	35
8	44
9	45
10	52
11	55
12	60
13	63
14	65
15	68
16	70
17	76
18	77
19	84
20	85
21	91
22	92
23	95
24	99
25	100
26	105
27	110
28	115
29	116
30	117
31	119
32	124
33	130
34	132
35	133
36	140
37	143
38	145
39	148
40	153
41	154
42	155
43	156
44	161
45	164
46	165
47	170
48	171
49	172
50	175
51	182
52	185
53	187
54	188
55	190
56	195
57	196
58	203