A069606 - cp's OEIS frontend

A069606 a(1) = 4; a(n) = smallest number such that the juxtaposition a(1)a(2)...a(n) is a prime.

n	a(n)
1	4
2	1
3	9
4	11
5	19
6	3
7	3
8	41
9	51
10	51
11	87
12	19
13	63
14	23
15	13
16	29
17	3
18	219
19	183
20	27
21	27
22	3
23	3
24	27
25	217
26	129
27	381
28	59
29	163
30	281
31	169
32	57
33	77
34	31
35	9
36	9
37	243
38	147
39	21
40	239
41	39
42	219
43	693
44	37
45	143
46	789
47	9
48	163
49	219
50	497
51	51
52	301
53	149
54	103
55	117
56	309
57	591
58	159
59	741
60	131
61	541
62	1377
63	207

[4, 1, 9, 11, 19, 3, 3, 41, 51, 51, 87, 19, 63, 23, 13, 29, 3, 219, 183, 27, 27, 3, 3, 27, 217, 129, 381, 59, 163, 281, 169, 57, 77, 31, 9, 9, 243, 147, 21, 239, 39, 219, 693, 37, 143, 789, 9, 163, 219, 497, 51, 301, 149, 103, 117, 309, 591, 159, 741, 131, 541, 1377, 207]

cp's OEIS Frontend

A069606 a(1) = 4; a(n) = smallest number such that the juxtaposition a(1)a(2)...a(n) is a prime.

Table of values

List of values