Concatenate next digit at right hand end (where the next digit after 9 is again 0).

A057137

Concatenate next digit at right hand end (where the next digit after 9 is again 0).

Terms

    a(0) =0a(1) =1a(2) =12a(3) =123a(4) =1234a(5) =12345a(6) =123456a(7) =1234567a(8) =12345678a(9) =123456789a(10) =1234567890a(11) =12345678901a(12) =123456789012

External references