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

A037659

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

Terms

    a(0) =3a(1) =30a(2) =302a(3) =3023a(4) =30230a(5) =302302a(6) =3023023a(7) =30230230a(8) =302302302a(9) =3023023023a(10) =30230230230a(11) =302302302302

External references