A247969 - cp's OEIS frontend

A247969 a(n) is the smallest k such that prime(k+i) (mod 6) takes successively the values 1,5,1,5,... for i = 0, 1,...,n-1 ending with 1 or 5.

n	a(n)
1	4
2	4
3	4
4	4
5	4
6	4
7	25
8	25
9	59
10	141
11	141
12	141
13	141
14	141
15	141
16	141
17	141
18	141
19	141
20	141
21	280230
22	280230
23	981960
24	981960
25	981960
26	4505195
27	4505195
28	7438440
29	15658002
30	15658002
31	15658002
32	15658002
33	2628111621
34	4671618380
35	4671618380
36	5803722576
37	5803722576
38	5803722576

[4, 4, 4, 4, 4, 4, 25, 25, 59, 141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 141, 280230, 280230, 981960, 981960, 981960, 4505195, 4505195, 7438440, 15658002, 15658002, 15658002, 15658002, 2628111621, 4671618380, 4671618380, 5803722576, 5803722576, 5803722576]

cp's OEIS Frontend

A247969 a(n) is the smallest k such that prime(k+i) (mod 6) takes successively the values 1,5,1,5,... for i = 0, 1,...,n-1 ending with 1 or 5.

Table of values

List of values