A212488 - cp's OEIS frontend

A212488 Smallest k>0 such that (5^n-k)5^n-1 and (5^n-k)5^n+1 are a twin prime pair or 0 if no such k exists.

n	a(n)
1	0
2	1
3	11
4	1
5	17
6	85
7	17
8	25
9	71
10	25
11	83
12	673
13	3623
14	1069
15	401
16	1225
17	1361
18	409
19	3449
20	2581
21	779
22	613
23	605
24	781
25	395
26	5797
27	17
28	6967
29	755
30	361
31	3443
32	5467
33	6857
34	679
35	53
36	9355
37	3287
38	2941
39	22385
40	6091
41	8423
42	685
43	13649
44	2437
45	113
46	19393
47	19781
48	12253
49	53603
50	21049
51	5321
52	2149
53	21779

[0, 1, 11, 1, 17, 85, 17, 25, 71, 25, 83, 673, 3623, 1069, 401, 1225, 1361, 409, 3449, 2581, 779, 613, 605, 781, 395, 5797, 17, 6967, 755, 361, 3443, 5467, 6857, 679, 53, 9355, 3287, 2941, 22385, 6091, 8423, 685, 13649, 2437, 113, 19393, 19781, 12253, 53603, 21049, 5321, 2149, 21779]

cp's OEIS Frontend

A212488 Smallest k>0 such that (5^n-k)5^n-1 and (5^n-k)5^n+1 are a twin prime pair or 0 if no such k exists.

Table of values

List of values

cp's OEIS Frontend

A212488 Smallest k>0 such that (5^n-k)*5^n-1 and (5^n-k)*5^n+1 are a twin prime pair or 0 if no such k exists.

Table of values

List of values

A212488 Smallest k>0 such that (5^n-k)5^n-1 and (5^n-k)5^n+1 are a twin prime pair or 0 if no such k exists.