id:A090079 - OEIS Search Results

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

+0
4

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; listen)

	OFFSET	`0,3`
	COMMENT	`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 this_sequence A165195 A121487 A057031` `Adjacent sequences: A090076 A090077 A090078 this_sequence A090080 A090081 A090082`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 20 2003`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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