A283619 - cp's OEIS frontend

A283619 a(n) = (conjectured) smallest positive integer k which is neither of the form p + n^x nor of the form p - n^x with x >= 0 and p prime, where gcd(k, n) = 1 and gcd(k^2-1, n-1) = 1.

n	a(n)
2	30666137
3	3902132276156
4	2473929
5	1015214
6	464437
7	40743218950116
8	47
9	2344
10	61863
11	32660
12	4367
13	7974
14	11
15	2021170066180678
16	92343
17	784
18	571
19	2364594
20	13
21	20450
22	136113
23	2596
24	176011
25	262638
26	3223
27	512
28	59217
29	26
30	18973
31	6360528
32	23
33	11848
34	99
35	292226
36	832573

[30666137, 3902132276156, 2473929, 1015214, 464437, 40743218950116, 47, 2344, 61863, 32660, 4367, 7974, 11, 2021170066180678, 92343, 784, 571, 2364594, 13, 20450, 136113, 2596, 176011, 262638, 3223, 512, 59217, 26, 18973, 6360528, 23, 11848, 99, 292226, 832573]

cp's OEIS Frontend

A283619 a(n) = (conjectured) smallest positive integer k which is neither of the form p + n^x nor of the form p - n^x with x >= 0 and p prime, where gcd(k, n) = 1 and gcd(k^2-1, n-1) = 1.

Table of values

List of values