A181451 - cp's OEIS frontend

A181451 Numbers k such that 13 is the largest prime factor of k^2 - 1.

n	a(n)
1	12
2	14
3	25
4	27
5	51
6	53
7	64
8	79
9	129
10	131
11	155
12	181
13	209
14	274
15	287
16	337
17	391
18	649
19	701
20	703
21	727
22	846
23	1249
24	1351
25	1457
26	1574
27	2001
28	3431
29	4159
30	8191
31	8449
32	13311
33	21295
34	246401

[12, 14, 25, 27, 51, 53, 64, 79, 129, 131, 155, 181, 209, 274, 287, 337, 391, 649, 701, 703, 727, 846, 1249, 1351, 1457, 1574, 2001, 3431, 4159, 8191, 8449, 13311, 21295, 246401]

cp's OEIS Frontend

A181451 Numbers k such that 13 is the largest prime factor of k^2 - 1.

Table of values

List of values