MathDB
$m=1^{2k+1}+2^{2k+1}+\cdots+n^{2k+1}$

Source: Moldova TST 2023

April 8, 2023
number theory

Problem Statement

Find all pairs of positive integers (n,k)(n,k) for which the number m=12k+1+22k+1++n2k+1m=1^{2k+1}+2^{2k+1}+\cdots+n^{2k+1} is divisible by n+2.n+2.