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If you’ve never heard of this problem before: https://en.m.wikipedia.org/wiki/Wheat_and_chessboard_problem
The number of grains of wheat on the first half of the chessboard is 1 + 2 + 4 + 8 + … + 2,147,483,648, for a total of 4,294,967,295 (232 − 1) grains, or about 279 tonnes of wheat