A358635 Number of partitions of n into at most 2 distinct prime powers (including 1).
1, 1, 1, 2, 2, 3, 2, 3, 3, 4, 3, 4, 4, 4, 3, 3, 4, 4, 4, 4, 5, 4, 3, 3, 5, 4, 4, 5, 5, 4, 6, 4, 7, 5, 6, 4, 7, 3, 5, 4, 6, 4, 6, 4, 6, 5, 5, 3, 8, 4, 7, 4, 6, 3, 8, 3, 7, 4, 5, 3, 8, 4, 6, 4, 7, 3, 9, 3, 8, 5, 7, 3, 10, 4, 7, 6, 7, 3, 9, 3, 9, 5, 6, 5, 11, 3, 8, 4, 7, 4, 12, 4
Offset: 0