Number of steps needed to reduce 10^n to zero by subtracting its digital sum.
A309417
Number of steps needed to reduce 10^n to zero by subtracting its digital sum.
Terms
- a(0) =2a(1) =11a(2) =81a(3) =611a(4) =4798a(5) =39320a(6) =333583a(7) =2897573a(8) =25632474a(9) =230231687a(10) =2091437006a(11) =19145032382a(12) =176258021378
External references
- oeis: A309417