Inverse binary transform of A027656.

Terms

a(0) =1a(1) =-1a(2) =3a(3) =-7a(4) =16a(5) =-36a(6) =80a(7) =-176a(8) =384a(9) =-832a(10) =1792a(11) =-3840a(12) =8192a(13) =-17408a(14) =36864a(15) =-77824a(16) =163840a(17) =-344064a(18) =720896a(19) =-1507328a(20) =3145728a(21) =-6553600a(22) =13631488a(23) =-28311552a(24) =58720256a(25) =-121634816a(26) =251658240a(27) =-520093696a(28) =1073741824a(29) =-2214592512