Number of partitions of n where the frequencies alternate in parity.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =4a(6) =6a(7) =7a(8) =11a(9) =12a(10) =15a(11) =19a(12) =26a(13) =30a(14) =37a(15) =42a(16) =58a(17) =64a(18) =82a(19) =92a(20) =120a(21) =129a(22) =167a(23) =181a(24) =241a(25) =252a(26) =326a(27) =346a(28) =450a(29) =474