Glaisher's function U(n).

Terms

a(0) =1a(1) =12a(2) =48a(3) =16a(4) =-414a(5) =-960a(6) =672a(7) =4800a(8) =2721a(9) =-9064a(10) =-8880a(11) =6912a(12) =-2398a(13) =-13440a(14) =29280a(15) =30976a(16) =-10878a(17) =57228a(18) =-9360a(19) =-252384a(20) =-53760a(21) =177600a(22) =-113952a(23) =107520a(24) =436131a(25) =-16488a(26) =150624a(27) =96768a(28) =-915678a(29) =-585600