I was just wondering where $fusc$ got its name (where $fusc(2n) = fusc(n), fusc(2n + 1) = fusc(n) + fusc(n + 1)$, seeds: $fusc(0) = 0, fusc(1) = 1$). The function is of some importance in the Calkin-Wilf sequence and is interesting in its own right.
2026-03-30 08:56:42.1774861002
The name of $fusc$ (Calkin-Wilf sequence)
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