The following seems so simple that I'm having trouble believing that it is new, although I can't find it on the OEIS. The number of partitions with parts whose frequencies are all odd. The values I get are: 1, 1, 1, 3, 2, 5, 6, 9, 9, 16, 20, 25, 32, 40, 54, 69, 84, 101, 136, 156, 202, 244,...