A049012 - OEIS

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A049012

Composite numbers n such that number of nonprime d with 0<d<n, GCD(n,d)=1, is pi(n).

33, 75, 94, 106, 118 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	EXAMPLE	`GCD(33,d)=1: d=1,4,8,10,14,16,20,25,26,28,32, pi(33)=11, so 33 is OK.`
	CROSSREFS	`Sequence in context: A103046 A063868 A184417 * A137187 A134037 A138841` `Adjacent sequences: A049009 A049010 A049011 * A049013 A049014 A049015`
	KEYWORD	`nonn`
	AUTHOR	`Naohiro Nomoto (6284968128(AT)geocities.co.jp)`

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Last modified February 16 07:39 EST 2012. Contains 205881 sequences.