How many 2-digit numbers can be written as the sum of exactly six different integer powers of -LSB- math -RSB- 2 -LSB- / math -RSB- , including -LSB- math -RSB- 2 ^ 0 -LSB- / math -RSB- ?
How many 2-digit numbers can be written as the sum of exactly six different powers of 2 , including 2 ^ 0 ?