The nth taxicab number Ta(n) is the smallest number representable in n ways as a sum of positive cubes. The numbers derive their name from the Hardy-Ramanujan number Ta(2) | = | 1729 | = | 1^3 + 12^3 | = | 9^3 + 10^3, which is associated with a story told about Ramanujan by G. H. Hardy.
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