Frequencies of the symbols

Suppose we have a Huffman tree for an alphabet of n symbols, and that the relative frequencies of the symbols are 1, 2, 4, ..., 2ⁿ⁻¹ . Sketch the tree for n = 5 ; for n = 10 . In such a tree (for general n ) how many bits are required to encode the most frequent symbol? the least frequent symbol?

---