A073139 - OEIS

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A073139

Difference between the largest and smallest number having in binary representation the same number of 0's and 1's as n.

0, 0, 0, 0, 0, 1, 1, 0, 0, 3, 3, 3, 3, 3, 3, 0, 0, 7, 7, 9, 7, 9, 9, 7, 7, 9, 9, 7, 9, 7, 7, 0, 0, 15, 15, 21, 15, 21, 21, 21, 15, 21, 21, 21, 21, 21, 21, 15, 15, 21, 21, 21, 21, 21, 21, 15, 21, 21, 21, 15, 21, 15, 15, 0, 0, 31, 31, 45, 31, 45, 45, 49, 31, 45, 45, 49, 45, 49, 49, 45, 31 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,10`
	COMMENTS	`a(n) = A073138(n) - A073137(n).`
	LINKS	`Index entries for sequences related to binary expansion of n` `Harvey P. Dale, Table of n, a(n) for n = 0..1000`
	MATHEMATICA	`d[n_]:=Module[{idn2=IntegerDigits[n, 2]}, FromDigits[Sort[idn2, #1>#2&], 2]- FromDigits[ RotateRight[Sort[idn2], 1], 2]]; Array[d, 90, 0] (* From Harvey P. Dale, Oct 22 2011 *)`
	CROSSREFS	`Cf. A007088, A073140, A073141.` `Sequence in context: A177228 A097675 A141605 * A122845 A135203 A179804` `Adjacent sequences: A073136 A073137 A073138 * A073140 A073141 A073142`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 16 2002`

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Last modified February 13 19:52 EST 2012. Contains 205536 sequences.