Integers of the form Sum_{k=1..m} d(k), where d(k) is the decimal fraction 0.k (e.g. d(999)=0.999).
A275623
Integers of the form Sum_{k=1..m} d(k), where d(k) is the decimal fraction 0.k (e.g. d(999)=0.999).
Terms
- a(0) =1a(1) =10a(2) =45a(3) =64a(4) =369a(5) =948a(6) =1155a(7) =9687a(8) =22998a(9) =126291a(10) =174997a(11) =1299997a(12) =4452157a(13) =6463650a(14) =29499996a(15) =69999996a(16) =888398929a(17) =4549999995a(18) =38445656295a(19) =454999999995a(20) =683977034682a(21) =699999999994
External references
- oeis: A275623