MathSciNet bibliographic data MR971086 (90b:11025) 11D61 Urbanowicz, Jerzy On the equation \$f(1)1\sp k+f(2)2\sp k+\cdots+f(x)x\sp k+R(x)=by\sp z\$$f(1)1\sp k+f(2)2\sp k+\cdots+f(x)x\sp k+R(x)=by\sp z$. Acta Arith. 51 (1988), no. 4, 349–368. Journal

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