%I #5 Mar 30 2012 17:28:13
%S 761729,761730,823543,1585272,1585273,1647086,2408815,2408816,2470629,
%T 3232358,3232359
%N n is equal to the number of 4s in all numbers <= n written in base 7.
%Y Cf. A014778, A014886.
%K nonn,base,fini,full
%O 1,1
%A _Olivier GĂ©rard_
%E List proved complete by _Hugo van der Sanden_ (cf. A014886).
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