OFFSET
1,2
LINKS
Nicolas Wicker, Tcl program
EXAMPLE
a(3)=1011 because a(2)=10 and 0, 1 and 10 are present in a(2) but 11 is not, so we append 11 to a(2) getting 10.11=1011.
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Nicolas Wicker (wicker(AT)igbmc.u-strasbg.fr), Mar 21 2007
STATUS
approved