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A080447
a(1) = 3, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).
8
3, 12, 108, 1188, 10692, 117612, 1058508, 11643588, 104792292, 1152715212, 10374436908, 114118805988, 1027069253892, 11297761792812, 101679856135308, 1118478417488388, 10066305757395492, 110729363331350412
OFFSET
1,1
MATHEMATICA
ntm[n_]:=Module[{c=Ceiling[10^IntegerLength[n]/n]}, If[c==10, n(c+1), c n]]; NestList[ ntm, 3, 20] (* Harvey P. Dale, Aug 21 2022 *)
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Feb 23 2003
EXTENSIONS
More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003
STATUS
approved