Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,1,1.
A037559
Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,1,1.
Terms
- a(0) =2a(1) =21a(2) =211a(3) =2112a(4) =21121a(5) =211211a(6) =2112112a(7) =21121121a(8) =211211211a(9) =2112112112a(10) =21121121121a(11) =211211211211
External references
- oeis: A037559