Numbers k such that 4*k-1 is the digit reversal of k-1.

Terms

a(0) =18a(1) =198a(2) =1998a(3) =19998a(4) =178218a(5) =199998a(6) =1780218a(7) =1999998a(8) =17800218a(9) =19782198a(10) =19999998a(11) =178000218a(12) =197802198a(13) =199999998a(14) =1780000218a(15) =1782178218a(16) =1978002198a(17) =1997821998a(18) =1999999998a(19) =17800000218a(20) =17821978218a(21) =19780002198a(22) =19978021998a(23) =19999999998a(24) =178000000218a(25) =178021780218a(26) =178219978218