Numbers n such that each reduced Collatz trajectory (mod p): (n, T(n), T(T(n)), ..., 4, 2, 1) / pZ, where the odd prime p is the number of iterations needed to reach 1, contains exactly the p-1 values {1, 2, 3, ..., p-1}.

A267435

Numbers n such that each reduced Collatz trajectory (mod p): (n, T(n), T(T(n)), ..., 4, 2, 1) / pZ, where the odd prime p is the number of iterations needed to reach 1, contains exactly the p-1 values {1, 2, 3, ..., p-1}.