A039353 - OEIS

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A039353

Numbers whose base-8 representation has the same nonzero number of 4's and 7's.

%I #11 Jun 30 2021 01:56:00

%S 39,60,103,124,167,188,231,252,263,271,279,287,303,311,312,313,314,

%T 315,317,318,359,380,423,444,452,460,468,476,480,481,482,483,485,486,

%U 492,500,551,572,615,636,679,700,743,764,775,783,791,799,815,823,824

%N Numbers whose base-8 representation has the same nonzero number of 4's and 7's.

%Y Cf. A007094.

%K nonn,base,easy

%O 1,1

%A _Olivier Gérard_