id:A165265 - OEIS Search Results

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Concatenate the number of 1s and number of 0s in the binary expansion of n.

+0
1

1, 10, 11, 20, 12, 21, 21, 30, 13, 22, 22, 31, 22, 31, 31, 40, 14, 23, 23, 32, 23, 32, 32, 41, 23, 32, 32, 41, 32, 41, 41, 50, 15, 24, 24, 33, 24, 33, 33, 42, 24, 33, 33, 42, 33, 42, 42, 51, 24, 33, 33, 42, 33, 42, 42, 51, 33, 42, 42, 51, 42, 51, 51, 60, 16, 25, 25, 34, 25, 34 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`a(7) = 30 because "111" has 3 zeroes and 0 ones. a(8) = 13 because "1000" has 1 zero and 3 ones.`
	CROSSREFS	`Sequence in context: A043818 A112787 A037307 this_sequence A049345 A007623 A109827` `Adjacent sequences: A165262 A165263 A165264 this_sequence A165266 A165267 A165268`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Gil Broussard (gilbroussard(AT)bellsouth.net), Sep 12 2009`

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.

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