A128160 - cp's OEIS frontend

A128160 a(n) = least k such that the remainder when 20^k is divided by k is n.

n	a(n)
1	19
2	3
3	17
4	6
5	15
6	7
7	13
8	9
9	11
10	18
11	7989
12	92
13	973
14	33
15	611
16	24
17	2661
18	382
19	559
20	21
21	96641237093
22	42
23	1887
24	94
25	155
26	27
27	60403
28	36
29	7971
30	74
31	1172954777
32	46
33	2470227509
34	122
35	45
36	116
37	1837
38	362
39	779
40	60
41	469
42	358
43	1275143
44	51
45	55
46	118
47	723
48	49

[19, 3, 17, 6, 15, 7, 13, 9, 11, 18, 7989, 92, 973, 33, 611, 24, 2661, 382, 559, 21, 96641237093, 42, 1887, 94, 155, 27, 60403, 36, 7971, 74, 1172954777, 46, 2470227509, 122, 45, 116, 1837, 362, 779, 60, 469, 358, 1275143, 51, 55, 118, 723, 49]

cp's OEIS Frontend

A128160 a(n) = least k such that the remainder when 20^k is divided by k is n.

Table of values

List of values