Number of n element multisets of the 15th roots of unity with zero sum.

Terms

a(0) =1a(1) =0a(2) =0a(3) =5a(4) =0a(5) =3a(6) =15a(7) =0a(8) =15a(9) =35a(10) =6a(11) =45a(12) =70a(13) =30a(14) =105a(15) =135a(16) =90a(17) =210a(18) =255a(19) =210a(20) =390a(21) =465a(22) =420a(23) =690a(24) =810a(25) =771a(26) =1170a(27) =1345a(28) =1335a(29) =1905