A087094 - cp's OEIS frontend

A087094 a(n) = smallest k such that (10^k-1)/9 == 0 mod prime(n)^2, or 0 if no such k exists.

n	a(n)
1	0
2	9
3	0
4	42
5	22
6	78
7	272
8	342
9	506
10	812
11	465
12	111
13	205
14	903
15	2162
16	689
17	3422
18	3660
19	2211
20	2485
21	584
22	1027
23	3403
24	3916
25	9312
26	404
27	3502
28	5671
29	11772
30	12656
31	5334
32	17030
33	1096
34	6394
35	22052
36	11325
37	12246
38	13203
39	27722
40	7439
41	31862
42	32580
43	18145
44	37056
45	19306

[0, 9, 0, 42, 22, 78, 272, 342, 506, 812, 465, 111, 205, 903, 2162, 689, 3422, 3660, 2211, 2485, 584, 1027, 3403, 3916, 9312, 404, 3502, 5671, 11772, 12656, 5334, 17030, 1096, 6394, 22052, 11325, 12246, 13203, 27722, 7439, 31862, 32580, 18145, 37056, 19306]

cp's OEIS Frontend

A087094 a(n) = smallest k such that (10^k-1)/9 == 0 mod prime(n)^2, or 0 if no such k exists.

Table of values

List of values