关于丢番图方程sum form k=0 to n(b-21k)=sum form k=1 to n(b+21k)

摘要

本文得到下面结论:设n,b,r为正整数,丢番图方程sum from k=0 to∞(1/n)(b-21k)~r=sum from k=1 to∞(1/n)(b+21k)~r仅有正整数解r=1,b=21n(n+1)和r=2,b=42n(n+1)