Leveling System

For levels its f(x)=800x for x=2(2^1),4(2^2),8(2^3),16(2^4)...power of 2
So...

02. 800 * 2 ^ 0 = 800;
03. 800 * 2 ^ 1 = 800 * 2 = 1.600;
04. 800 * 2 ^ 2 = 800 * 4 = 3.200;
05. 800 * 2 ^ 3 = 800 * 8 = 6.400;
06. 800 * 2 ^ 4 = 800 * 16 = 12.800;
07. 800 * 2 ^ 5 = 800 * 32 = 25.600
08. 800 * 2 ^ 6 = 800 * 64 = 51.200;
09. 800 * 2 ^ 7 = 800 * 128 = 102.400;
10. 800 * 2 ^ 8 = 800 * 256 = 204.800;
11. 800 * 2 ^ 9 = 800 * 512 = 409.600;
12. 800 * 2 ^ 10 = 800 * 1024 = 819.200;
13. 800 * 2 ^ 11 = 800 * 2048 = 1.638.400...