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A228006
Smallest composite numbers with multiplicative digital root value 0 <= n <= 9.
0
10, 111, 12, 1113, 4, 15, 6, 117, 8, 9
OFFSET
0,1
CROSSREFS
Cf. A198487, A198378 (smallest prime with multiplicative digital root 0 <= n <= 9).
Sequence in context: A282452 A282653 A282801 * A004290 A257344 A244859
KEYWORD
nonn,base,fini,full
AUTHOR
Jaroslav Krizek, Aug 08 2013
STATUS
approved