Numbers that are palindromic in bases 2 and 5.

Terms

a(0) =0a(1) =1a(2) =3a(3) =31a(4) =93a(5) =119a(6) =2709a(7) =38937a(8) =520831a(9) =682341a(10) =340134981a(11) =7609865031a(12) =17935304097a(13) =26777829859a(14) =169179279801a(15) =567897922593