a(0) = 1; thereafter a(n) is the concatenation of a(n-1), n, a(n-1).
A259747
a(0) = 1; thereafter a(n) is the concatenation of a(n-1), n, a(n-1).
Terms
- a(0) =1a(1) =111a(2) =1112111
External references
- oeis: A259747
A259747
a(0) = 1; thereafter a(n) is the concatenation of a(n-1), n, a(n-1).