Terms of A123857 that are not powers of 2.

Terms

a(0) =38a(1) =205a(2) =316a(3) =736a(4) =3776a(5) =4916a(6) =5888a(7) =7736a(8) =11138a(9) =22287a(10) =23308a(11) =23924a(12) =39538a(13) =62336a(14) =71936