Add (n mod 10)*10^(n-1) to the previous term, with a(0) = 0.
A057138
Add (n mod 10)*10^(n-1) to the previous term, with a(0) = 0.
Terms
- a(0) =0a(1) =1a(2) =21a(3) =321a(4) =4321a(5) =54321a(6) =654321a(7) =7654321a(8) =87654321a(9) =987654321a(10) =987654321a(11) =10987654321a(12) =210987654321
External references
- oeis: A057138