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Minimal number of edit-steps (insert, delete, substitute) to obtain in decimal representation the least number greater n that contains all digits of n (A083310).
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%I #7 Mar 30 2012 18:50:32

%S 1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,3,1,2,2,2,2,2,2,2,2,3,2,1,2,

%T 2,2,2,2,2,2,3,2,2,1,2,2,2,2,2,2,3,2,2,2,1,2,2,2,2,2,3,2,2,2,2,1,2,2,

%U 2,2,3,2,2,2,2,2,1,2,2,2,3,2,2,2,2,2,2,1,2,2,3,2,2,2,2,2,2,2,2,1,1,2,2,2,2

%N Minimal number of edit-steps (insert, delete, substitute) to obtain in decimal representation the least number greater n that contains all digits of n (A083310).

%C a(n) = LD-10(n, A083310(n)), where LD-10 is the Levenshtein distance on decimal strings.

%H Michael Gilleland, <a href="http://www.merriampark.com/ld.htm">Levenshtein Distance</a>. [It has been suggested that this algorithm gives incorrect results sometimes. - _N. J. A. Sloane_]

%K nonn,base

%O 1,12

%A _Reinhard Zumkeller_, Apr 24 2003