Sum of the digits of all n-digit numbers.
A078761
Sum of the digits of all n-digit numbers.
Terms
- a(0) =45a(1) =855a(2) =12600a(3) =166500a(4) =2070000a(5) =24750000a(6) =288000000a(7) =3285000000a(8) =36900000000a(9) =409500000000
External references
- oeis: A078761