Oscillates under partition transform.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =11a(7) =15a(8) =19a(9) =25a(10) =31a(11) =41a(12) =49a(13) =61a(14) =75a(15) =91a(16) =110a(17) =134a(18) =157a(19) =189a(20) =222a(21) =264a(22) =308a(23) =363a(24) =420a(25) =489a(26) =566a(27) =654a(28) =751a(29) =866