The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 2.
A299865
The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 2.
Terms
- a(0) =2a(1) =20a(2) =198a(3) =1981a(4) =19818a(5) =198179a(6) =1981783a(7) =19817838a(8) =198178379a(9) =1981783783a(10) =19817837830a(11) =198178378308
External references
- oeis: A299865