A089049 Number of ways of writing n as a sum of exactly 4 powers of 2.

0, 0, 0, 0, 1, 1, 1, 2, 2, 1, 2, 2, 2, 2, 3, 1, 2, 1, 2, 2, 3, 2, 3, 1, 2, 2, 3, 1, 3, 1, 1, 0, 2, 1, 2, 2, 3, 2, 3, 1, 3, 2, 3, 1, 3, 1, 1, 0, 2, 2, 3, 1, 3, 1, 1, 0, 3, 1, 1, 0, 1, 0, 0, 0, 2, 1, 2, 2, 3, 2, 3, 1, 3, 2, 3, 1, 3, 1, 1, 0, 3, 2, 3, 1, 3, 1, 1, 0, 3, 1, 1, 0, 1, 0, 0, 0, 2, 2, 3, 1, 3, 1, 1, 0, 3