Indices of terms in A353730 that are powers of 2.

Terms

a(0) =1a(1) =2a(2) =4a(3) =9a(4) =19a(5) =79a(6) =159a(7) =319a(8) =1279a(9) =10239a(10) =20479a(11) =40959a(12) =163839a(13) =1310719a(14) =5242879a(15) =10485759