Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 10 (most significant digit on right).

A061963

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 10 (most significant digit on right).

Terms

    a(0) =1a(1) =3a(2) =9a(3) =189a(4) =753a(5) =987a(6) =6739a(7) =10953a(8) =51963a(9) =171897a(10) =224081a(11) =635031a(12) =1135001a(13) =4437459

External references