Concatenation of the numbers from 1 to n but omitting 5.

A262575

Concatenation of the numbers from 1 to n but omitting 5.

Terms

    a(0) =1a(1) =12a(2) =123a(3) =1234a(4) =12346a(5) =123467a(6) =1234678a(7) =12346789a(8) =1234678910a(9) =123467891011

External references