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A161603 Odd elements of sequence A161602. 2

%I

%S 13,25,29,41,49,53,57,59,61,81,89,97,101,105,109,113,115,117,121,123,

%T 125,145,161,169,177,181,185,193,197,201,205,209,211,213,217,221,225,

%U 227,229,233,235,237,241,243,245,247,249,251,253,289,305

%N Odd elements of sequence A161602.

%e 29 in binary is 11101. Its digital reversal is 10111, which is 23 in decimal. Since 29 > 23, and since 29 is odd, then 29 is in this sequence.

%t Select[Range[1,311,2],#>FromDigits[Reverse[IntegerDigits[#,2]],2]&] (* _Harvey P. Dale_, Feb 20 2013 *)

%Y A030101, A006995, A161601, A161602

%K base,nonn

%O 1,1

%A _Leroy Quet_, Jun 14 2009

%E More terms from _Max Alekseyev_, Dec 10 2011

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Last modified August 11 03:22 EDT 2020. Contains 336421 sequences. (Running on oeis4.)