A066064 - cp's OEIS frontend

A066064 a(n) = p.q in decimal notation where p = prime(n) and q is the smallest prime (A066065(n)) such that the concatenation p.q is a prime.

n	a(n)
1	23
2	37
3	53
4	73
5	113
6	137
7	173
8	193
9	233
10	293
11	313
12	373
13	4111
14	433
15	4723
16	5323
17	593
18	613
19	673
20	7129
21	733
22	797
23	8311
24	8923
25	977
26	1013
27	1033
28	10711
29	1093
30	11311
31	1277
32	13147
33	1373
34	13913
35	1493
36	15131
37	15731
38	1637
39	16729
40	1733
41	17911
42	18119
43	1913

[23, 37, 53, 73, 113, 137, 173, 193, 233, 293, 313, 373, 4111, 433, 4723, 5323, 593, 613, 673, 7129, 733, 797, 8311, 8923, 977, 1013, 1033, 10711, 1093, 11311, 1277, 13147, 1373, 13913, 1493, 15131, 15731, 1637, 16729, 1733, 17911, 18119, 1913]

cp's OEIS Frontend

A066064 a(n) = p.q in decimal notation where p = prime(n) and q is the smallest prime (A066065(n)) such that the concatenation p.q is a prime.

Table of values

List of values