Append n to the previous term, reverse alternate terms.
A053052
Append n to the previous term, reverse alternate terms.
Terms
- a(0) =1a(1) =21a(2) =123a(3) =4321a(4) =12345a(5) =654321a(6) =1234567a(7) =87654321a(8) =123456789a(9) =10987654321
External references
- oeis: A053052