Concatenation of the reversed digits of numbers from 1 to n.

A138957

Concatenation of the reversed digits of numbers from 1 to n.

Terms

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

External references