OFFSET
1,2
COMMENTS
a(6) is not 2211109 because the 0 in this number is considered insignificant (for comparison, the 0 in 22111109 would be significant, but this value is not the smallest possible extension of a(5)=22111). - Sean A. Irvine, May 07 2024
EXAMPLE
a(4) = 2111 starting with a(3) =211 and a(5) = 22111 ending in a(4) = 2111.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Amarnath Murthy, Mar 27 2002
EXTENSIONS
More terms from Robert Gerbicz, Aug 27 2002
Name clarified by Sean A. Irvine, May 07 2024
STATUS
approved