Re:42 is found to be the sum of three cubes
by jjtheblunt on Friday September 06, 2019 @05:12PM
(#20899948)
With negative numbers, it's still enumerable, as if it were a six-tuple of natural numbers, I figured.
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Re:42 is found to be the sum of three cubes
by MertsA on Saturday September 07, 2019 @03:29AM
(#20902355)
Maybe I'm looking at this the wrong way, but I'd handle enumerating this just like enumerating a set of three numbers. For an integer i just do (1-2(i%2)) * (i/2) using integer division. If it's recursively enumerable with natural numbers then it has to be trivially extendable to all integers just by that method alone.