Inverse binomial transform of A166517.

Terms

a(0) =1a(1) =4a(2) =-5a(3) =10a(4) =-20a(5) =40a(6) =-80a(7) =160a(8) =-320a(9) =640a(10) =-1280a(11) =2560a(12) =-5120a(13) =10240a(14) =-20480a(15) =40960a(16) =-81920a(17) =163840a(18) =-327680a(19) =655360a(20) =-1310720a(21) =2621440a(22) =-5242880a(23) =10485760a(24) =-20971520a(25) =41943040a(26) =-83886080a(27) =167772160a(28) =-335544320a(29) =671088640