4 5 6 7 8 9 …
10 11 12 13 14 15 …
------------------------------------
1 2 3 4 5 6 7 8 9 10 …
1 3 7 15 31 63 127 255 511 1023 …
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1 10*1 =10 (10)
2 10*3 =30 (40)
3 10*7 =70 (110)
4 10*15 =150 (260)
5 10*31 =310 (570)
6 10*63 =630 (1200)
7 10*127 =1270 (2470)
8 10*255 =2550 (5020)
9 10*511 =5110 (10130)
10 10*1023 =10230 (20360)
・
・