Positions where number of periodic partitions increases.

Terms

a(0) =2a(1) =4a(2) =5a(3) =10a(4) =16a(5) =17a(6) =31a(7) =48a(8) =79a(9) =87a(10) =111a(11) =185a(12) =187a(13) =254a(14) =259a(15) =425a(16) =432a(17) =557a(18) =627a(19) =875a(20) =922a(21) =1173a(22) =1232a(23) =1262a(24) =1776a(25) =1927a(26) =2446a(27) =2592a(28) =3485a(29) =3881