Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,3,2.

A037617

Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,3,2.

Terms

    a(0) =1a(1) =13a(2) =132a(3) =1321a(4) =13213a(5) =132132a(6) =1321321a(7) =13213213a(8) =132132132a(9) =1321321321a(10) =13213213213a(11) =132132132132

External references