A382035 - cp's OEIS frontend

A382035 a(n) is the smallest prime q such that q + prime(n) is of form 10^k or 2*10^k, or 0 if no such prime exists.

n	a(n)
1	0
2	7
3	5
4	3
5	89
6	7
7	3
8	181
9	977
10	71
11	1999969
12	163
13	59
14	157
15	53
16	47
17	41
18	139
19	1933
20	29
21	127
22	199921
23	17
24	11
25	3
26	999999999899
27	97
28	999999893
29	19891
30	887
31	73
32	9999999999999999999869
33	863
34	61
35	9851
36	1999999999849
37	43
38	37
39	9833
40	827
41	821
42	19
43	809
44	7
45	3
46	1801
47	1789

[0, 7, 5, 3, 89, 7, 3, 181, 977, 71, 1999969, 163, 59, 157, 53, 47, 41, 139, 1933, 29, 127, 199921, 17, 11, 3, 999999999899, 97, 999999893, 19891, 887, 73, 9999999999999999999869, 863, 61, 9851, 1999999999849, 43, 37, 9833, 827, 821, 19, 809, 7, 3, 1801, 1789]

cp's OEIS Frontend

A382035 a(n) is the smallest prime q such that q + prime(n) is of form 10^k or 2*10^k, or 0 if no such prime exists.

Table of values

List of values