MathDB

2

Part of 1997 APMO

Problems(1)

(2^n+2)/n being an integer

Source: APMO 1997

3/17/2006
Find an integer nn, where 100≤n≤1997100 \leq n \leq 1997, such that 2n+2n \frac{2^n+2}{n} is also an integer.
number theory