1,2

The number of n-digit terms is (n^3+15n^2+32n+6)/6. - David Wasserman

Table of n, a(n) for n=1..62.

Cf. A096105.

Sequence in context: A038724 A106001 A161390 * A321990 A076641 A076643

Adjacent sequences: A096103 A096104 A096105 * A096107 A096108 A096109

base,easy,nonn

Amarnath Murthy, Jun 26 2004

Edited by David Wasserman, Dec 28 2005

approved