A110408 - cp's OEIS frontend

A110408 Smallest prime which is the repeated reverse concatenation of n followed by n (ending in n), where n == 1,3,7 or 9 (mod 10), or 0 if no such prime exists.

n	a(n)
0	11
1	0
2	0
3	0
4	0
5	3131313131313131313113
6	71717117
7	9191919191919119
8	0
9	32323223
10	0
11	9292929292929292929229
12	13131331
13	0
14	7373737373737373737373737373737373737373737337
15	0
16	14141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141441

[11, 0, 0, 0, 0, 3131313131313131313113, 71717117, 9191919191919119, 0, 32323223, 0, 9292929292929292929229, 13131331, 0, 7373737373737373737373737373737373737373737337, 0, 14141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141414141441]

cp's OEIS Frontend

A110408 Smallest prime which is the repeated reverse concatenation of n followed by n (ending in n), where n == 1,3,7 or 9 (mod 10), or 0 if no such prime exists.

Table of values

List of values