Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,0,1,3.

A037722

Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 2,0,1,3.

Terms

    a(0) =2a(1) =20a(2) =201a(3) =2013a(4) =20132a(5) =201320a(6) =2013201a(7) =20132013a(8) =201320132a(9) =2013201320a(10) =20132013201a(11) =201320132013

External references