Oscillating orbitals over n sectors (nonpositive values indicating there exist none).

Terms

a(0) =-1a(1) =-1a(2) =0a(3) =0a(4) =2a(5) =10a(6) =10a(7) =70a(8) =42a(9) =378a(10) =168a(11) =1848a(12) =660a(13) =8580a(14) =2574a(15) =38610a(16) =10010a(17) =170170a(18) =38896a(19) =739024a(20) =151164a(21) =3174444a(22) =587860a(23) =13520780a(24) =2288132a(25) =57203300a(26) =8914800a(27) =240699600a(28) =34767720a(29) =1008263880