id:A143072 - OEIS Search Results

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A positive integer n is included if both the number of 0's and the number of 1's in the binary representation of n are powers of 2 (including being possibly 1).

+0
3

2, 4, 5, 6, 9, 10, 12, 16, 23, 27, 29, 30, 33, 34, 36, 39, 40, 43, 45, 46, 48, 51, 53, 54, 57, 58, 60, 135, 139, 141, 142, 147, 149, 150, 153, 154, 156, 163, 165, 166, 169, 170, 172, 177, 178, 180, 184, 195, 197, 198, 201, 202, 204, 209, 210, 212, 216, 225, 226, 228 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`34 in binary is 100010. This has 4 zeros and 2 ones. And since 4 and 2 are both powers of 2, 34 is included in the sequence.`
	CROSSREFS	`Cf. A023416, A000120, A143070, A143071.` `Sequence in context: A047435 A132791 A125297 this_sequence A089648 A062861 A120629` `Adjacent sequences: A143069 A143070 A143071 this_sequence A143073 A143074 A143075`
	KEYWORD	`base,nonn`
	AUTHOR	`Leroy Quet Jul 22 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 20 2009`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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