id:A143264 - OEIS Search Results

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A positive integer n is included if the binary representation of the number of divisors of n does not occur anywhere in the binary representation of n.

+0
3

3, 4, 6, 7, 9, 10, 14, 15, 16, 18, 20, 21, 22, 26, 27, 30, 31, 32, 42, 46, 48, 54, 55, 58, 62, 63, 64, 68, 72, 75, 78, 84, 85, 86, 87, 90, 91, 93, 94, 95, 102, 105, 106, 110, 111, 112, 114, 118, 119, 120, 122, 123, 125, 126, 127, 132, 144, 147, 148, 150, 154, 160, 164 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`30 has 8 divisors. 30 in binary is 11110. 8 in binary is 1000. The string 1000 does not occur anywhere in the string 11110. So 30 occurs in this sequence.`
	CROSSREFS	`Cf. A143262, A143263.` `Sequence in context: A085795 A068675 A026315 this_sequence A126332 A039026 A123540` `Adjacent sequences: A143261 A143262 A143263 this_sequence A143265 A143266 A143267`
	KEYWORD	`base,nonn,new`
	AUTHOR	`Leroy Quet (qq-quet(AT)mindspring.com), Aug 03 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 09 2008`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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