OFFSET
1,2
LINKS
Hans Havermann, Table of n, a(n) for n = 1..129
Eric Angelini, A Recurring Digital Invariant Variant
E. Angelini, A Recurring Digital Invariant Variant [Cached, with permission]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, May 15 2009 based on email from Eric Angelini, Feb 18 2009
STATUS
approved