Balanced ternary is an odd choice for signed integers, when it seems like two's-complement integers would work just as well here. (That is, start with primitives 0 = ...00000 and -1 = ...11111, and construct 2x and 2x+1 from those.)

aleph_minus_one · 2h ago

Or simply use binary (in the sense of digits 0,1) numbers with respect to base -2.

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