Smallest Positive Integer not of form +-4 mod 9 not representable as Sum of Three Cubes/Mistake

Source Work

 * The Dictionary
 * $30$
 * $30$

Mistake

 * $30$ is the smallest number which has not been represented as the sum of $3$ integer cubes.

Integers $n$ of the form $n \equiv \pm 4 \pmod 9$ are not so representable.

The statement needs to be restated as that:
 * $30$ is the smallest number not equivalent to $\pm 4 \pmod 9$ which has not been represented as the sum of $3$ integer cubes.

Since the statement was written, $30$ has now been so represented:
 * $30 = 2220422932^3 + \left({- 2218888517^3}\right) + \left({- 283059965^3}\right)$