A337829 - cp's OEIS frontend

A337829 Odd integers k such that 5^((k-1)/2) + 1 == 0 (mod k*(k-1)/2).

n	a(n)
1	3
2	7
3	43
4	53
5	127
6	163
7	487
8	677
9	883
10	2647
11	8527
12	8803
13	14407
14	18523
15	26407
16	32887
17	35323
18	39367
19	71443
20	105967
21	184087
22	184843
23	230203
24	265483
25	319327
26	388963
27	425083
28	543607
29	554527
30	651043
31	688087
32	690607
33	698923
34	796447
35	887923
36	924043
37	1001323

[3, 7, 43, 53, 127, 163, 487, 677, 883, 2647, 8527, 8803, 14407, 18523, 26407, 32887, 35323, 39367, 71443, 105967, 184087, 184843, 230203, 265483, 319327, 388963, 425083, 543607, 554527, 651043, 688087, 690607, 698923, 796447, 887923, 924043, 1001323]

cp's OEIS Frontend

A337829 Odd integers k such that 5^((k-1)/2) + 1 == 0 (mod k*(k-1)/2).

Table of values

List of values