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A039385 Numbers whose base-9 representation has the same nonzero number of 4's and 7's. 0

%I #11 Jun 30 2021 01:54:34

%S 43,67,124,148,205,229,286,310,331,340,349,358,376,385,387,388,389,

%T 390,392,393,395,403,448,472,529,553,571,580,589,598,603,604,605,606,

%U 608,609,611,616,625,643,691,715,772,796,853,877,934,958,1015,1039

%N Numbers whose base-9 representation has the same nonzero number of 4's and 7's.

%Y Cf. A007095.

%K nonn,base,easy

%O 1,1

%A _Olivier GĂ©rard_

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Last modified July 22 09:18 EDT 2024. Contains 374485 sequences. (Running on oeis4.)