a(n) is the number of n-digit multiples of n.
A061772
a(n) is the number of n-digit multiples of n.
Terms
- a(0) =10a(1) =45a(2) =300a(3) =2250a(4) =18000a(5) =150000a(6) =1285714a(7) =11250000a(8) =100000000a(9) =900000000a(10) =8181818181a(11) =75000000000a(12) =692307692307
External references
- oeis: A061772