A152608 - cp's OEIS frontend

A152608 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 three consecutive digits in the sequence is a prime.

n	a(n)
1	1
2	2
3	7
4	19
5	37
6	39
7	71
8	91
9	93
10	733
11	739
12	773
13	971
14	977
15	3311
16	3733
17	7331
18	7337
19	9719
20	9773
21	31131
22	31137
23	33113
24	73311
25	311311
26	311313
27	733113
28	733131
29	733137
30	971911
31	3113113
32	7331131
33	7331137
34	9719113
35	9719191
36	9719193

[1, 2, 7, 19, 37, 39, 71, 91, 93, 733, 739, 773, 971, 977, 3311, 3733, 7331, 7337, 9719, 9773, 31131, 31137, 33113, 73311, 311311, 311313, 733113, 733131, 733137, 971911, 3113113, 7331131, 7331137, 9719113, 9719191, 9719193]

cp's OEIS Frontend

A152608 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 three consecutive digits in the sequence is a prime.

Table of values

List of values