Question 39013
Yes, a classic problem, this time presented as grains of wheat.  I first heard it as grains of rice given by the Chinese emperor to a great warrior...
This is a "powers of two" problem...
1st square = 2^0 grains
2nd square = 2^1 grains
3rd square = 2^2 grains
4th square = 2^3 grains
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24th square = 2^23 grains  ( a very large number  )