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%I #8 Dec 15 2017 17:44:31
%S 0,244,939,38842,399158,3185054,8997888,89003533,380705305,0,
%T 120958456566,909738914355,10691161155707,215413743487843,
%U 1146359095715014,11741086634604569,186260344930883645,586697640742217928,22434377949474656108,86030233471862779595
%N Sum of all n-digit Keith numbers.
%C There are no 1-digit and 10-digit Keith numbers.
%H _Jason Earls_ and Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KeithNumber.html">Keith Number</a>.
%e Sum of all 2-digit Keith numbers is 244.
%e Sum of all 3-digit Keith numbers is 939.
%e Sum of all 4-digit Keith numbers is 38842.
%Y Cf. A007629.
%K nonn,base
%O 1,2
%A _Parthasarathy Nambi_, Dec 10 2007
%E Extended by _T. D. Noe_, Mar 15 2011