A074345 - cp's OEIS frontend

A074345 a(1) = 9; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.

n	a(n)
1	9
2	11
3	21
4	33
5	39
6	71
7	73
8	81
9	101
10	123
11	193
12	257
13	271
14	293
15	379
16	387
17	407
18	627
19	669
20	931
21	1073
22	1179
23	1273
24	1481
25	2587
26	2627
27	2923
28	3063
29	3617
30	3931
31	4073
32	4093
33	4199
34	4491
35	4801
36	5387
37	5647
38	5739
39	5859
40	5979
41	6149
42	6369
43	7527
44	8053
45	8207
46	8647
47	8949
48	8981

[9, 11, 21, 33, 39, 71, 73, 81, 101, 123, 193, 257, 271, 293, 379, 387, 407, 627, 669, 931, 1073, 1179, 1273, 1481, 2587, 2627, 2923, 3063, 3617, 3931, 4073, 4093, 4199, 4491, 4801, 5387, 5647, 5739, 5859, 5979, 6149, 6369, 7527, 8053, 8207, 8647, 8949, 8981]

cp's OEIS Frontend

A074345 a(1) = 9; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.

Table of values

List of values