A110905 - cp's OEIS frontend

A110905 a(n) is the least number k such that kprime(n)# - 1 is prime and (kprime(n)# - 1)^2 - 2 is a Chen prime.

n	a(n)
1	2
2	1
3	1
4	11
5	1
6	6
7	41
8	17
9	8
10	13
11	14
12	107
13	84
14	23
15	4
16	101
17	13
18	89
19	211
20	58
21	83
22	75
23	260
24	414
25	35
26	39
27	871
28	79
29	27
30	42
31	915
32	44
33	349
34	142
35	249
36	404
37	140
38	84
39	1068
40	693
41	972
42	236
43	1571
44	1200
45	298
46	423
47	970
48	183
49	173
50	659
51	523
52	645
53	1596
54	448
55	40
56	201
57	195
58	1859
59	427
60	1732

[2, 1, 1, 11, 1, 6, 41, 17, 8, 13, 14, 107, 84, 23, 4, 101, 13, 89, 211, 58, 83, 75, 260, 414, 35, 39, 871, 79, 27, 42, 915, 44, 349, 142, 249, 404, 140, 84, 1068, 693, 972, 236, 1571, 1200, 298, 423, 970, 183, 173, 659, 523, 645, 1596, 448, 40, 201, 195, 1859, 427, 1732]

cp's OEIS Frontend

A110905 a(n) is the least number k such that kprime(n)# - 1 is prime and (kprime(n)# - 1)^2 - 2 is a Chen prime.

Table of values

List of values

cp's OEIS Frontend

A110905 a(n) is the least number k such that k*prime(n)# - 1 is prime and (k*prime(n)# - 1)^2 - 2 is a Chen prime.

Table of values

List of values

A110905 a(n) is the least number k such that kprime(n)# - 1 is prime and (kprime(n)# - 1)^2 - 2 is a Chen prime.