POJ 1517

#include <iostream>
int main(){
    std::cout<<
"n e\n"
"- -----------\n"
"0 1\n"
"1 2\n"
"2 2.5\n"
"3 2.666666667\n"
"4 2.708333333\n"
"5 2.716666667\n"
"6 2.718055556\n"
"7 2.718253968\n"
"8 2.71827877\n"
"9 2.718281526";
    return 0;
}