OFFSET
1,1
COMMENTS
See A235400 for the analogous sequence where we number the digits starting with 9 at the rightmost digit.
REFERENCES
Rodolfo Kurchan, Problems with repdigits, to appear in Proceedings of Gathering for Gardner 2014 conference
EXAMPLE
2 means two 1's = 11; 11 means one 1 + one 2 = 3; 3 means 111; 111 means 1+2+3 = 6; 6 means 111111 = 1+2+3+4+5+6 = 21; 21 means 11+2 = 13; etc.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rodolfo Kurchan, Jan 10 2014
EXTENSIONS
Edited by N. J. A. Sloane, Jan 24 2014
STATUS
approved