Numbers whose base-5 representation Sum_{i=0..m} d(i)*5^(m-i) has d(i)=0 for all odd i.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =10a(6) =15a(7) =20a(8) =25a(9) =26a(10) =27a(11) =28a(12) =29a(13) =50a(14) =51a(15) =52a(16) =53a(17) =54a(18) =75a(19) =76a(20) =77a(21) =78a(22) =79a(23) =100a(24) =101a(25) =102a(26) =103a(27) =104a(28) =125a(29) =130