Inverse Euler transform of the Moebius function A008683.

Terms

a(0) =1a(1) =-2a(2) =0a(3) =0a(4) =-1a(5) =2a(6) =-4a(7) =5a(8) =-7a(9) =9a(10) =-10a(11) =7a(12) =-5a(13) =-2a(14) =19a(15) =-44a(16) =70a(17) =-103a(18) =138a(19) =-166a(20) =154a(21) =-83a(22) =-70a(23) =346a(24) =-797a(25) =1413a(26) =-2160a(27) =2931a(28) =-3479a(29) =3380