OFFSET
1,2
COMMENTS
Comments from Charles R Greathouse IV, Mar 24 2010: 223350264196231244560 <= a(21) <= 223410574802741131526, a(22) < 1.528939387 * 10^313.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Juri-Stepan Gerasimov, Feb 25 2010
EXTENSIONS
4 more terms from R. J. Mathar, Mar 01 2010
a(20) from Charles R Greathouse IV, Apr 22 2010
STATUS
approved