1,2

Table of n, a(n) for n=1..7.

a(2) = 81, a(3) = 19881 = 141^2 is obtained by prefixing 198 =3*66, to 81.

Cf. A088064.

Sequence in context: A116007 A013829 A100533 * A017200 A017308 A017428

Adjacent sequences: A088060 A088061 A088062 * A088064 A088065 A088066

base,nonn

Amarnath Murthy, Sep 21 2003

Corrected and extended by Hans Havermann, Mar 01 2004

approved