The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 4.
A299867
The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 4.
Terms
- a(0) =4a(1) =40a(2) =396a(3) =3963a(4) =39636a(5) =396357a(6) =3963567a(7) =39635676a(8) =396356757a(9) =3963567567a(10) =39635675670a(11) =396356756706
External references
- oeis: A299867