A239020 - cp's OEIS frontend

A239020 Smallest number k such that kn +/- 1 and kn^2 +/- 1 are two sets of twin primes. a(n) = 0 if no such number exists.

n	a(n)
1	4
2	3
3	2
4	15
5	6
6	2
7	150
8	75
9	20
10	6
11	78
12	85
13	2490
14	30
15	18
16	195
17	5160
18	490
19	330
20	12
21	2
22	870
23	330
24	13
25	42
26	105
27	2280
28	375
29	12
30	41
31	1632
32	720
33	90
34	3
35	216
36	2
37	1380
38	615
39	98
40	84
41	438
42	65
43	600
44	210
45	148
46	735
47	3870
48	115
49	138
50	39
51	182
52	2715
53	16590
54	48
55	60
56	63
57	210
58	120

[4, 3, 2, 15, 6, 2, 150, 75, 20, 6, 78, 85, 2490, 30, 18, 195, 5160, 490, 330, 12, 2, 870, 330, 13, 42, 105, 2280, 375, 12, 41, 1632, 720, 90, 3, 216, 2, 1380, 615, 98, 84, 438, 65, 600, 210, 148, 735, 3870, 115, 138, 39, 182, 2715, 16590, 48, 60, 63, 210, 120]

cp's OEIS Frontend

A239020 Smallest number k such that kn +/- 1 and kn^2 +/- 1 are two sets of twin primes. a(n) = 0 if no such number exists.

Table of values

List of values

cp's OEIS Frontend

A239020 Smallest number k such that k*n +/- 1 and k*n^2 +/- 1 are two sets of twin primes. a(n) = 0 if no such number exists.

Table of values

List of values

A239020 Smallest number k such that kn +/- 1 and kn^2 +/- 1 are two sets of twin primes. a(n) = 0 if no such number exists.