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Table of n, a(n) for n=0..99.
Eric Weisstein's World of Mathematics, Digit addition.
Cf. A003132, A099645. [From R. J. Mathar, May 31 2009]
Sequence in context: A010531 A195141 A171811 * A269350 A195139 A010731
Adjacent sequences: A031173 A031174 A031175 * A031177 A031178 A031179
Eric W. Weisstein
The value a(0)=1 was added by R. J. Mathar, May 31 2009