id:A136480 - OEIS Search Results

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Number of trailing equal digits in binary representation of n.

+0
3

1, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 5, 5, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 6, 6, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 5, 5, 1, 1, 2, 2, 1, 1, 3, 3 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`a(even) = number of trailing binary zeros;` `a(odd) = number of trailing binary ones;` `a(n) = A050603(n-1) for n>0;` `a(2*n + n mod 2) = a(n) + 1.`
	LINKS	`Index entries for sequences related to binary expansion of n`
	FORMULA	`For n>0: a(n) = A007814(n + n mod 2).`
	CROSSREFS	`Sequence in context: A064894 A003638 A094267 this_sequence A050603 A037162 A027358` `Adjacent sequences: A136477 A136478 A136479 this_sequence A136481 A136482 A136483`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 31 2007`

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.

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