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%I #10 Dec 02 2020 09:42:14
%S 1,102772,102773,102774,102775,102776,102777,102778,102779,102780,
%T 142155,142156,737002,737003,737004,737005,737006,737007,737008,
%U 737009,737010,1594323,1594324,1697095,1697096,1697097,1697098
%N n is equal to the number of 1's in all numbers <= n written in base 9.
%H Robert Israel, <a href="/A014884/b014884.txt">Table of n, a(n) for n = 1..49</a>
%p T:= 0: R:= NULL:
%p for n from 1 to 6*10^6 do
%p T:= T + numboccur(1,convert(n,base,9));
%p if T = n then R:= R, n fi
%p od:
%p R; # _Robert Israel_, Dec 01 2020
%Y Cf. A014778.
%K nonn,base,fini,full
%O 1,2
%A _Olivier Gérard_
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