OFFSET
0,3
COMMENTS
Lexicographically smallest nondecreasing left inverse to A117804: a(A117804(n)) = n. Gives the number to which belongs the digit A007376(n). - M. F. Hasler, Oct 23 2019
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Rick L. Shepherd, Nov 21 2004
STATUS
approved