1×2 = 2×2 = 4×2 = 8×2 = ...... down have all
1×2=2 2×2=4 4×2=8 8×2=16 16×2=32 32×2=64 64×2=128 128×2=256 256×2=512 512×2=1024 1024×2=2048 2048×2=4096 4096×2=8192 more......
