A090079 - OEIS

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A090079

In binary expansion of n: reduce contiguous blocks of 0's to 0 and contiguous blocks of 1's to 1.

0, 1, 2, 1, 2, 5, 2, 1, 2, 5, 10, 5, 2, 5, 2, 1, 2, 5, 10, 5, 10, 21, 10, 5, 2, 5, 10, 5, 2, 5, 2, 1, 2, 5, 10, 5, 10, 21, 10, 5, 10, 21, 42, 21, 10, 21, 10, 5, 2, 5, 10, 5, 10, 21, 10, 5, 2, 5, 10, 5, 2, 5, 2, 1, 2, 5, 10, 5, 10, 21, 10, 5, 10, 21, 42, 21, 10, 21, 10, 5, 10, 21, 42, 21 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`a(a(n))=a(n); a(n)=A090078(A090077(n))=A090077(A090078(n)).`
	LINKS	`Index entries for sequences related to binary expansion of n`
	EXAMPLE	`100 -> '1100100' -> [11][00][1][00] -> [1][0][1][0] -> '1010' ->` `10=a(100).`
	CROSSREFS	`Cf. A007088, A090077, A090078, A090080.` `Sequence in context: A122881 A135506 A068822 * A165195 A121487 A057031` `Adjacent sequences: A090076 A090077 A090078 * A090080 A090081 A090082`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 20 2003`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.