Numbers n such that n and 2^n end with the same 4 digits.

Terms

a(0) =8736a(1) =18736a(2) =28736a(3) =38736a(4) =48736a(5) =58736a(6) =68736a(7) =78736a(8) =88736a(9) =98736a(10) =108736a(11) =118736a(12) =128736a(13) =138736a(14) =148736a(15) =158736a(16) =168736a(17) =178736a(18) =188736a(19) =198736a(20) =208736a(21) =218736a(22) =228736a(23) =238736a(24) =248736a(25) =258736a(26) =268736a(27) =278736a(28) =288736a(29) =298736