Number of different periodic multisets that fit within some normal multiset of weight n.

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =13a(5) =25a(6) =44a(7) =78a(8) =136a(9) =242a(10) =422a(11) =747a(12) =1314a(13) =2326a(14) =4121a(15) =7338a(16) =13052a(17) =23288a(18) =41568a(19) =74329a(20) =133011a(21) =238338a(22) =427278a(23) =766652a(24) =1376258a(25) =2472012a(26) =4441916a(27) =7984990a(28) =14358424a(29) =25826779