方幂和中因子3的指数(英文)

The exponent of factor 3 in power sum

给出下面方幂和中因子 3的指数公式∑n - 1k =0 (x +kd) r,d =3s+ 1,3s+ 2 ,3s+ 3 ,其中x ,r ,n是正整数 ,s是非负整数 ,n =3am ,3

Let n,x,r be positive integer, n=3 am,3m,the exponent of factor 3 in power sum:∑n-1k=0[x+dk] r,d=3s+1,3s+2,3s+3 is discussed and calculation formulas are given.