A048108 - OEIS

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A048108

Number of unitary divisors of n (A034444) <= number of non-unitary divisors of n (A048105).

8, 16, 24, 27, 32, 36, 40, 48, 54, 56, 64, 72, 80, 81, 88, 96, 100, 104, 108, 112, 120, 125, 128, 135, 136, 144, 152, 160, 162, 168, 176, 180, 184, 189, 192, 196, 200, 208, 216, 224, 225, 232, 240, 243, 248, 250, 252, 256, 264, 270, 272, 280, 288, 296, 297 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,1`
	LINKS	`Table of n, a(n) for n=0..54.`
	MAPLE	with(numtheory): for n from 1 to 800 do if 2^nops(ifactors(n)[2])<=tau(n)-2^nops(ifactors(n)[2]) then printf(`%d, `, n) fi; od:
	CROSSREFS	`Complement of A048107.` `Sequence in context: A122612 A078130 A062171 * A137845 A046099 A033859` `Adjacent sequences: A048105 A048106 A048107 * A048109 A048110 A048111`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane, Labos E. (labos(AT)ana.sote.hu)`
	EXTENSIONS	`More terms from James A. Sellers, Jun 20 2000`
	STATUS	`approved`

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Last modified May 22 04:30 EDT 2013. Contains 225511 sequences.