A130670 - OEIS

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A130670

Smallest k such that phi(x)=k has exactly n even solutions.

1, 2, 4, 8, 16, 32, 24, 80, 48, 160, 72, 216, 96 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Vladeta Jovovic, Table of n, a(n) for n = 1..100`
	EXAMPLE	`a(3)=4 because there are 3 even solutions (8, 10, 12) of phi(x)=4 and for all k<4 the number of even solutions of phi(x)=k is unequal to 3.`
	CROSSREFS	`Cf. A007374.` `Sequence in context: A070350 A070349 A070348 * A070340 A036124 A070339` `Adjacent sequences: A130667 A130668 A130669 * A130671 A130672 A130673`
	KEYWORD	`nonn`
	AUTHOR	`Franz Vrabec (franz.vrabec(AT)aon.at), Jun 27 2007`

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.