A078202 - cp's OEIS frontend

A078202 a(n) is the smallest prime of the form abs(n^k - k^n), the absolute difference between n^k and k^n, or -1 if no such prime exists.

n	a(n)
1	2
2	7
3	2
4	3
5	7
6	5
7	79
8	7
9	431
10	58049
11	8375575711
12	11
13	13055867207
14	13
15	94233563770233419658037661865757455268745312881861761180195872329157714108064193
16	-1
17	130783
18	17
19	523927
20	19
21	2046526777460104549122039297254727662107009

[2, 7, 2, 3, 7, 5, 79, 7, 431, 58049, 8375575711, 11, 13055867207, 13, 94233563770233419658037661865757455268745312881861761180195872329157714108064193, -1, 130783, 17, 523927, 19, 2046526777460104549122039297254727662107009]

cp's OEIS Frontend

A078202 a(n) is the smallest prime of the form abs(n^k - k^n), the absolute difference between n^k and k^n, or -1 if no such prime exists.

Table of values

List of values