A247250 - cp's OEIS frontend

A247250 Indices of Pell numbers having exactly one primitive prime factor.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	18
17	21
18	24
19	29
20	30
21	32
22	33
23	35
24	38
25	41
26	42
27	50
28	53
29	54
30	56
31	58
32	59
33	66
34	69
35	89
36	90
37	94
38	95
39	97
40	99
41	101
42	104
43	117
44	118
45	120
46	135
47	138
48	160
49	167
50	181
51	191
52	210
53	221
54	237
55	242
56	247

[2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 21, 24, 29, 30, 32, 33, 35, 38, 41, 42, 50, 53, 54, 56, 58, 59, 66, 69, 89, 90, 94, 95, 97, 99, 101, 104, 117, 118, 120, 135, 138, 160, 167, 181, 191, 210, 221, 237, 242, 247]

cp's OEIS Frontend

A247250 Indices of Pell numbers having exactly one primitive prime factor.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	18
17	21
18	24
19	29
20	30
21	32
22	33
23	35
24	38
25	41
26	42
27	50
28	53
29	54
30	56
31	58
32	59
33	66
34	69
35	89
36	90
37	94
38	95
39	97
40	99
41	101
42	104
43	117
44	118
45	120
46	135
47	138
48	160
49	167
50	181
51	191
52	210
53	221
54	237
55	242
56	247

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	18
17	21
18	24
19	29
20	30
21	32
22	33
23	35
24	38
25	41
26	42
27	50
28	53
29	54
30	56
31	58
32	59
33	66
34	69
35	89
36	90
37	94
38	95
39	97
40	99
41	101
42	104
43	117
44	118
45	120
46	135
47	138
48	160
49	167
50	181
51	191
52	210
53	221
54	237
55	242
56	247

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	18
17	21
18	24
19	29
20	30
21	32
22	33
23	35
24	38
25	41
26	42
27	50
28	53
29	54
30	56
31	58
32	59
33	66
34	69
35	89
36	90
37	94
38	95
39	97
40	99
41	101
42	104
43	117
44	118
45	120
46	135
47	138
48	160
49	167
50	181
51	191
52	210
53	221
54	237
55	242
56	247