A169798 - cp's OEIS frontend

A169798 a(n) = smallest prime number > a(n-1) that contains the n-th composite number as a substring.

n	a(n)
1	41
2	61
3	83
4	89
5	101
6	127
7	149
8	151
9	163
10	181
11	1201
12	1213
13	1223
14	1249
15	1259
16	2267
17	2273
18	2281
19	2309
20	3203
21	3301
22	3343
23	3359
24	3361
25	3389
26	3391
27	3407
28	4201
29	4409
30	4451
31	4463
32	4481
33	4493
34	4507
35	4513
36	4523
37	4547
38	5501
39	5563
40	5573
41	5581
42	6007
43	6203
44	6263
45	6421

[41, 61, 83, 89, 101, 127, 149, 151, 163, 181, 1201, 1213, 1223, 1249, 1259, 2267, 2273, 2281, 2309, 3203, 3301, 3343, 3359, 3361, 3389, 3391, 3407, 4201, 4409, 4451, 4463, 4481, 4493, 4507, 4513, 4523, 4547, 5501, 5563, 5573, 5581, 6007, 6203, 6263, 6421]

cp's OEIS Frontend

A169798 a(n) = smallest prime number > a(n-1) that contains the n-th composite number as a substring.

Table of values

List of values