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A164861 Odd positive integers that are not palindromes when written in binary. 4
11, 13, 19, 23, 25, 29, 35, 37, 39, 41, 43, 47, 49, 53, 55, 57, 59, 61, 67, 69, 71, 75, 77, 79, 81, 83, 87, 89, 91, 95, 97, 101, 103, 105, 109, 111, 113, 115, 117, 121, 123, 125, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 155, 157, 159, 161, 163, 167 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
These are the odd members of A154809.
LINKS
FORMULA
A178225(a(n)) * (1 - A000035(a(n))) = 0. [Reinhard Zumkeller, Oct 21 2011]
MATHEMATICA
npbQ[n_]:=Module[{idn2=IntegerDigits[n, 2]}, idn2!=Reverse[idn2]]; Select[ Range[1, 201, 2], npbQ] Harvey P. Dale, May 17 2012
PROG
(Haskell)
a164861 n = a164861_list !! (n-1)
a164861_list = filter ((== 0) . a178225) a005408_list
-- Reinhard Zumkeller, Oct 21 2011
CROSSREFS
Cf. A154809.
Sequence in context: A164708 A030792 A101934 * A040150 A214629 A330696
KEYWORD
base,nonn
AUTHOR
Leroy Quet, Aug 28 2009
EXTENSIONS
Extended by Ray Chandler, Mar 14 2010
STATUS
approved

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Last modified July 23 08:23 EDT 2024. Contains 374546 sequences. (Running on oeis4.)