A152607 - cp's OEIS frontend

A152607 a(1) = 1; thereafter a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that the concatenation of any two consecutive digits in the sequence is a prime.

n	a(n)
1	1
2	3
3	7
4	9
5	71
6	73
7	79
8	711
9	713
10	717
11	971
12	973
13	1111
14	1113
15	1117
16	1119
17	7111
18	7113
19	7117
20	9711
21	9713
22	11111
23	11113
24	11117
25	11119
26	71111
27	71113
28	71117
29	97111
30	97113
31	111111
32	111113
33	111117
34	111119
35	711111
36	711113
37	711117
38	971111

[1, 3, 7, 9, 71, 73, 79, 711, 713, 717, 971, 973, 1111, 1113, 1117, 1119, 7111, 7113, 7117, 9711, 9713, 11111, 11113, 11117, 11119, 71111, 71113, 71117, 97111, 97113, 111111, 111113, 111117, 111119, 711111, 711113, 711117, 971111]

cp's OEIS Frontend

A152607 a(1) = 1; thereafter a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that the concatenation of any two consecutive digits in the sequence is a prime.

Table of values

List of values