一类正负相间方幂和中因子3的指数

摘要

Let n ,x, r be positive integer n = 3a m, 3 m, The exponent of factor 3 in power sum: 2n-1∑k-0 (-l)k [x + dk ]r,d = 3s + 1 ,d = 3s + 2,d = 3s + 3 is discussed and calculation formulas are given.%给出下面正负相间方幂和中因子3的指数公式:2n-1∑k-0(-1)k[x+dk,d=3s+1,d=3s+2.d=3s+3其中r,n,x是正整数,s是非负整数,n=3am,3 m