A219276 - cp's OEIS frontend

A219276 Numbers n such that T_4(n) is prime, where T_4(x) = 8x^4 - 8x^2 + 1 is the fourth Chebyshev polynomial (of the first kind).

n	a(n)
1	2
2	3
3	5
4	8
5	10
6	14
7	17
8	19
9	31
10	32
11	34
12	35
13	39
14	48
15	50
16	51
17	53
18	54
19	59
20	61
21	73
22	76
23	78
24	84
25	88
26	90
27	97
28	101
29	102
30	105
31	107
32	110
33	121
34	126
35	128
36	134
37	135
38	139
39	143
40	144
41	146
42	152
43	153
44	158
45	167
46	171
47	172
48	178
49	180
50	184
51	186
52	187
53	189
54	201
55	202
56	203
57	205
58	207

[2, 3, 5, 8, 10, 14, 17, 19, 31, 32, 34, 35, 39, 48, 50, 51, 53, 54, 59, 61, 73, 76, 78, 84, 88, 90, 97, 101, 102, 105, 107, 110, 121, 126, 128, 134, 135, 139, 143, 144, 146, 152, 153, 158, 167, 171, 172, 178, 180, 184, 186, 187, 189, 201, 202, 203, 205, 207]

cp's OEIS Frontend

A219276 Numbers n such that T_4(n) is prime, where T_4(x) = 8x^4 - 8x^2 + 1 is the fourth Chebyshev polynomial (of the first kind).

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	8
5	10
6	14
7	17
8	19
9	31
10	32
11	34
12	35
13	39
14	48
15	50
16	51
17	53
18	54
19	59
20	61
21	73
22	76
23	78
24	84
25	88
26	90
27	97
28	101
29	102
30	105
31	107
32	110
33	121
34	126
35	128
36	134
37	135
38	139
39	143
40	144
41	146
42	152
43	153
44	158
45	167
46	171
47	172
48	178
49	180
50	184
51	186
52	187
53	189
54	201
55	202
56	203
57	205
58	207

n	a(n)
1	2
2	3
3	5
4	8
5	10
6	14
7	17
8	19
9	31
10	32
11	34
12	35
13	39
14	48
15	50
16	51
17	53
18	54
19	59
20	61
21	73
22	76
23	78
24	84
25	88
26	90
27	97
28	101
29	102
30	105
31	107
32	110
33	121
34	126
35	128
36	134
37	135
38	139
39	143
40	144
41	146
42	152
43	153
44	158
45	167
46	171
47	172
48	178
49	180
50	184
51	186
52	187
53	189
54	201
55	202
56	203
57	205
58	207

n	a(n)
1	2
2	3
3	5
4	8
5	10
6	14
7	17
8	19
9	31
10	32
11	34
12	35
13	39
14	48
15	50
16	51
17	53
18	54
19	59
20	61
21	73
22	76
23	78
24	84
25	88
26	90
27	97
28	101
29	102
30	105
31	107
32	110
33	121
34	126
35	128
36	134
37	135
38	139
39	143
40	144
41	146
42	152
43	153
44	158
45	167
46	171
47	172
48	178
49	180
50	184
51	186
52	187
53	189
54	201
55	202
56	203
57	205
58	207