Number of n element multisets of the 10th roots of unity with zero sum.

Terms

a(0) =1a(1) =0a(2) =5a(3) =0a(4) =15a(5) =2a(6) =35a(7) =10a(8) =70a(9) =30a(10) =128a(11) =70a(12) =220a(13) =140a(14) =360a(15) =254a(16) =565a(17) =430a(18) =855a(19) =690a(20) =1255a(21) =1060a(22) =1795a(23) =1570a(24) =2510a(25) =2256a(26) =3440a(27) =3160a(28) =4630a(29) =4330