A242564 - cp's OEIS frontend

A242564 Least prime p such that p10^n+1, p10^n+3, p10^n+7 and p10^n+9 are all prime.

n	a(n)
1	19
2	1657
3	13
4	9001
5	283
6	115201
7	61507
8	249439
9	375127
10	472831
11	786823
12	172489
13	1237
14	2359033
15	163063
16	961981
17	1442017
18	457
19	1208833
20	4845583
21	1146877
22	11550193
23	436831
24	1911031
25	581047
26	4504351
27	215737
28	3685051
29	27805381
30	1343791
31	82491967
32	15696349
33	20446423

[19, 1657, 13, 9001, 283, 115201, 61507, 249439, 375127, 472831, 786823, 172489, 1237, 2359033, 163063, 961981, 1442017, 457, 1208833, 4845583, 1146877, 11550193, 436831, 1911031, 581047, 4504351, 215737, 3685051, 27805381, 1343791, 82491967, 15696349, 20446423]

cp's OEIS Frontend

A242564 Least prime p such that p10^n+1, p10^n+3, p10^n+7 and p10^n+9 are all prime.

Table of values

List of values

cp's OEIS Frontend

A242564 Least prime p such that p*10^n+1, p*10^n+3, p*10^n+7 and p*10^n+9 are all prime.

Table of values

List of values

A242564 Least prime p such that p10^n+1, p10^n+3, p10^n+7 and p10^n+9 are all prime.