A130062 - cp's OEIS frontend

A130062 Nonprime numbers k such that k divides 3^((k+1)/2) - 2^((k+1)/2) - 1.

n	a(n)
1	1
2	21
3	49
4	105
5	1729
6	2465
7	2877
8	7305
9	10585
10	15841
11	31021
12	31621
13	32041
14	41041
15	46657
16	52633
17	54145
18	75361
19	83333
20	115921
21	126217
22	162401
23	172081
24	211141
25	282133
26	284649
27	294409
28	334153
29	383161
30	399001
31	417241
32	449065
33	488881
34	530881

[1, 21, 49, 105, 1729, 2465, 2877, 7305, 10585, 15841, 31021, 31621, 32041, 41041, 46657, 52633, 54145, 75361, 83333, 115921, 126217, 162401, 172081, 211141, 282133, 284649, 294409, 334153, 383161, 399001, 417241, 449065, 488881, 530881]

cp's OEIS Frontend

A130062 Nonprime numbers k such that k divides 3^((k+1)/2) - 2^((k+1)/2) - 1.

Table of values

List of values