Answer:
Step-by-step explanation:
If a number A is divisible by 7, then it satisfies the following condition
● A = 7k
k is an integer
Let A be the sum of consecutive integers raised to the power of n
● A = a^n + (a+1)^n + (a+2)^n + .....
For this sequence to be divisible by 7 it must satisfy the condition above
A = 7k where k is an integer
