import decimal from decimal import * getcontext().prec = 120 n = Decimal ('19.9') for bla in range (0, 101, 1): n = Decimal (n) + Decimal ('0.1') som = Decimal ('1') x = Decimal ('1') while x < 400000.1: x = Decimal (x) + Decimal ('1') som = Decimal (som) + Decimal ('1') / (Decimal (x) ** Decimal (n)) print ("") print ("", n, "") print ("", '{:102.100f}'.format(som), "") print ("") print ("")