Numbers of the form 10^(m-k)*(10^(m+k+1)-10^k), m, k >= 0.
A083909
Numbers of the form 10^(m-k)*(10^(m+k+1)-10^k), m, k >= 0.
Terms
- a(0) =9a(1) =990a(2) =99900a(3) =9999000a(4) =999990000a(5) =99999900000
External references
- oeis: A083909
A083909
Numbers of the form 10^(m-k)*(10^(m+k+1)-10^k), m, k >= 0.