The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 9.
A299872
The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 9.
Terms
- a(0) =9a(1) =90a(2) =891a(3) =8918a(4) =89181a(5) =891802a(6) =8918027a(7) =89180271a(8) =891802702a(9) =8918027027a(10) =89180270270a(11) =891802702701
External references
- oeis: A299872