Smallest number such that the concatenation of first n terms is a proper multiple of the concatenation of first n natural numbers.
A074108
Smallest number such that the concatenation of first n terms is a proper multiple of the concatenation of first n natural numbers.
Terms
- a(0) =2a(1) =4a(2) =6a(3) =8a(4) =13585a(5) =81504a(6) =959339a(7) =3715372a(8) =78137091a(9) =2037878170a(10) =861472331456
External references
- oeis: A074108