A230506 - cp's OEIS frontend

A230506 Numbers n with 2n + 1 and 2n^3 + 1 both prime.

n	a(n)
1	1
2	2
3	5
4	6
5	9
6	11
7	20
8	21
9	26
10	29
11	30
12	35
13	44
14	86
15	95
16	96
17	99
18	111
19	120
20	134
21	140
22	165
23	186
24	191
25	204
26	221
27	231
28	249
29	260
30	299
31	321
32	330
33	354
34	375
35	380
36	384
37	386
38	431
39	440
40	455
41	485
42	491
43	506
44	515
45	545
46	551
47	554
48	596
49	600
50	629

[1, 2, 5, 6, 9, 11, 20, 21, 26, 29, 30, 35, 44, 86, 95, 96, 99, 111, 120, 134, 140, 165, 186, 191, 204, 221, 231, 249, 260, 299, 321, 330, 354, 375, 380, 384, 386, 431, 440, 455, 485, 491, 506, 515, 545, 551, 554, 596, 600, 629]

cp's OEIS Frontend

A230506 Numbers n with 2n + 1 and 2n^3 + 1 both prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	6
5	9
6	11
7	20
8	21
9	26
10	29
11	30
12	35
13	44
14	86
15	95
16	96
17	99
18	111
19	120
20	134
21	140
22	165
23	186
24	191
25	204
26	221
27	231
28	249
29	260
30	299
31	321
32	330
33	354
34	375
35	380
36	384
37	386
38	431
39	440
40	455
41	485
42	491
43	506
44	515
45	545
46	551
47	554
48	596
49	600
50	629

n	a(n)
1	1
2	2
3	5
4	6
5	9
6	11
7	20
8	21
9	26
10	29
11	30
12	35
13	44
14	86
15	95
16	96
17	99
18	111
19	120
20	134
21	140
22	165
23	186
24	191
25	204
26	221
27	231
28	249
29	260
30	299
31	321
32	330
33	354
34	375
35	380
36	384
37	386
38	431
39	440
40	455
41	485
42	491
43	506
44	515
45	545
46	551
47	554
48	596
49	600
50	629

cp's OEIS Frontend

A230506 Numbers n with 2*n + 1 and 2*n^3 + 1 both prime.

Table of values

List of values

A230506 Numbers n with 2n + 1 and 2n^3 + 1 both prime.

n	a(n)
1	1
2	2
3	5
4	6
5	9
6	11
7	20
8	21
9	26
10	29
11	30
12	35
13	44
14	86
15	95
16	96
17	99
18	111
19	120
20	134
21	140
22	165
23	186
24	191
25	204
26	221
27	231
28	249
29	260
30	299
31	321
32	330
33	354
34	375
35	380
36	384
37	386
38	431
39	440
40	455
41	485
42	491
43	506
44	515
45	545
46	551
47	554
48	596
49	600
50	629