Lengths increase by 1, digits cycle through positive digits.

A007923

Lengths increase by 1, digits cycle through positive digits.

Terms

    a(0) =1a(1) =23a(2) =456a(3) =7891a(4) =23456a(5) =789123a(6) =4567891a(7) =23456789a(8) =123456789a(9) =1234567891a(10) =23456789123a(11) =456789123456

External references