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 A068862 Numbers n such that A068861(n) = n. 0
 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 31, 48, 51, 68, 71, 88, 91, 108, 307, 309, 511, 688, 711, 888, 911, 1088, 3110, 7111, 10879 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS MAPLE V:= Vector(10^5): V[1]:= 1: m:= 2: count:= 1: A[1]:= 1: L:= [1]: for n from 2 to 12000 do   for i from m to 10^5 do     if V[i] = 0 then       LL:= convert(i, base, 10);       k:= min(nops(L), nops(LL));       if not has(LL[1..k] - L[1..k], 0) then         V[i]:= n;         if i = m then           for m from m+1 while V[m] <> 0 do od:         fi;         if i = n then            count:= count+1;            A[count]:= n;         fi;         L:= LL;         break       fi     fi   od;   if i = 10^5 + 1 then break fi od: seq(A[i], i=1..count); # Robert Israel, Mar 03 2016 CROSSREFS Cf. A068860, A068861. Sequence in context: A297274 A048322 A048335 * A061729 A286126 A249157 Adjacent sequences:  A068859 A068860 A068861 * A068863 A068864 A068865 KEYWORD base,nonn AUTHOR Amarnath Murthy, Mar 13 2002 EXTENSIONS a(19)-a(30) from Robert Israel, Mar 03 2016 STATUS approved

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Last modified September 19 23:31 EDT 2019. Contains 327207 sequences. (Running on oeis4.)