A077391 - cp's OEIS frontend

A077391 Smallest n-digit prime which leaves a prime at every step if most significant digit and least significant digit are deleted until a one digit or two digit prime is obtained, or 0 if no such prime exists.

n	a(n)
1	2
2	11
3	127
4	1021
5	10313
6	100237
7	1002931
8	10002331
9	100023331
10	1000023337
11	10000239937
12	100000233397
13	1000002339937
14	10000002339931
15	100000139991331
16	1000000023399331
17	10000000233993397
18	100000000293999997

[2, 11, 127, 1021, 10313, 100237, 1002931, 10002331, 100023331, 1000023337, 10000239937, 100000233397, 1000002339937, 10000002339931, 100000139991331, 1000000023399331, 10000000233993397, 100000000293999997]

cp's OEIS Frontend

A077391 Smallest n-digit prime which leaves a prime at every step if most significant digit and least significant digit are deleted until a one digit or two digit prime is obtained, or 0 if no such prime exists.

Table of values

List of values