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A342481 Prime numbers whose binary expansion involves powers of 2 with only composite (or zero) exponents. 1

%I #14 May 09 2021 10:20:45

%S 17,257,337,577,593,769,1297,1361,1553,1601,1873,4177,4673,5393,5441,

%T 5953,16657,17489,17681,17729,17921,18257,20753,21313,21521,21569,

%U 21841,22273,32833,33601,33617,33809,33857,34129,34369,36929,37201,37441,37633,37649,37889,38737

%N Prime numbers whose binary expansion involves powers of 2 with only composite (or zero) exponents.

%e 17 = 2^4 + 2^0 is a term.

%e 337 = 2^8 + 2^6 + +2^4 + 2^0 is a term.

%Y Cf. A342475.

%K nonn,base

%O 1,1

%A _Vassilis Papadimitriou_, Mar 13 2021

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Last modified September 5 11:55 EDT 2024. Contains 375696 sequences. (Running on oeis4.)