Answer
The first 15 values of $n\left \lfloor{\log_2 {n}}\right \rfloor $ for all $n \geq 1$ are
0, 2, 3, 8, 10, 12, 14, 24, 27, 30, 33, 36, 39, 42, 45
Work Step by Step
The function $n\left \lfloor{\log_2 {n}}\right \rfloor $ is increasing at an approximately constant rate.