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%I #10 Jun 25 2022 10:01:48
%S 0,1,1,2,3,4,4,5,5,6,7,8,9,10,11,12,13,14,14,15,15,16,17,18,18,19,19,
%T 20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,
%U 43,44,45,46,46,47,47,48,49,50,50,51,51,52,53,54,55,56,57,58,59,60,60,61
%N Number of numbers <= n having at least one 1 in their ternary representation.
%C a(n) + A061392(n) = n+1.
%o (PARI) has(n)=!!setsearch(Set(digits(n,3)),1)
%o first(n)=my(s); vector(n,k,s+=has(k)) \\ _Charles R Greathouse IV_, Sep 02 2015
%Y Cf. A007089, A062756, A081607, A081610, A061392.
%Y Partial sums of A316829.
%K nonn
%O 0,4
%A _Reinhard Zumkeller_, Mar 23 2003
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