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

A037757

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

Terms

    a(0) =2a(1) =23a(2) =231a(3) =2310a(4) =23102a(5) =231023a(6) =2310231a(7) =23102310a(8) =231023102a(9) =2310231023a(10) =23102310231a(11) =231023102310

External references