Odpowiedź :
1, 3, 7, ...
1 + 2¹ = 1 + 2 = 3
3 + 2² = 3 + 4 = 7
7 + 2³ = 7 + 8 = 15
15 + 2⁴ = 15 + 16 = 31
31 + 2⁵ = 31 + 32 = 63
63 + 2⁶ = 63 + 64 = 127
127 + 2⁷ = 127 + 128 = 255
1, 3, 7, 15, 31, 63, 127, 255
1, 3, 7, ...
1 + 2¹ = 1 + 2 = 3
3 + 2² = 3 + 4 = 7
7 + 2³ = 7 + 8 = 15
15 + 2⁴ = 15 + 16 = 31
31 + 2⁵ = 31 + 32 = 63
63 + 2⁶ = 63 + 64 = 127
127 + 2⁷ = 127 + 128 = 255
1, 3, 7, 15, 31, 63, 127, 255