A124977 - cp's OEIS frontend

A124977 Least positive number k such that 2^k mod k = 2n+1, or 0 if no such k exists.

n	a(n)
0	0
1	4700063497
2	19147
3	25
4	2228071
5	262279
6	95
7	481
8	45
9	2873
10	3175999
11	555
12	95921
13	174934013
14	777
15	140039
16	2463240427
17	477
18	91
19	623
20	2453
21	55
22	345119
23	1131
24	943
25	21967
26	135
27	46979
28	125
29	3811
30	23329
31	155
32	1064959
33	245

[0, 4700063497, 19147, 25, 2228071, 262279, 95, 481, 45, 2873, 3175999, 555, 95921, 174934013, 777, 140039, 2463240427, 477, 91, 623, 2453, 55, 345119, 1131, 943, 21967, 135, 46979, 125, 3811, 23329, 155, 1064959, 245]

cp's OEIS Frontend

A124977 Least positive number k such that 2^k mod k = 2n+1, or 0 if no such k exists.

Table of values

List of values