id:A161398 - OEIS Search Results

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a(n) = the smallest divisor of n that contains the same number of 1's as n when both numbers are written in binary.

+0
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1, 1, 3, 1, 5, 3, 7, 1, 3, 5, 11, 3, 13, 7, 15, 1, 17, 3, 19, 5, 7, 11, 23, 3, 25, 13, 27, 7, 29, 15, 31, 1, 3, 17, 7, 3, 37, 19, 39, 5, 41, 7, 43, 11, 15, 23, 47, 3, 7, 25, 51, 13, 53, 27, 55, 7, 57, 29, 59, 15, 61, 31, 63, 1, 5, 3, 67, 17, 69, 7, 71, 3, 73, 37, 15, 19, 77, 39, 79, 5, 81 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`A161399` `Sequence in context: A099549 A082725 A078701 this_sequence A161820 A116528 A081431` `Adjacent sequences: A161395 A161396 A161397 this_sequence A161399 A161400 A161401`
	KEYWORD	`base,nonn`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jun 09 2009`
	EXTENSIONS	`More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Oct 22 2009`

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

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