id:A078151 - OEIS Search Results

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Smallest x such that d[phi(x)]-phi[d(x)]=-n, where d()=A000005(),phi()=A000010(); restricted to cases when d[phi(x)]-phi[d(x)] is negative.

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240, 120, 960, 6528, 4080, 1920, 15360, 24960, 61440, 13440, 16320, 87360, 983040, 196560, 1432080, 130560, 861840, 32640, 98280, 114240, 2545920, 293760, 261120, 967680, 174720, 2673216, 4194240, 1081080, 1044480, 913920, 1659840, 424320 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(77)=2970240, since d[phi(2970240)]-phi[d(2970240)]=-77 first appears here; while d[phi(x)]-phi[d(x)] takes large positive values,absolute value of negative differences grows significantly slower.`
	CROSSREFS	`Cf. A000005, A000010.` `Sequence in context: A163052 A072173 A015161 this_sequence A100748 A072235 A121378` `Adjacent sequences: A078148 A078149 A078150 this_sequence A078152 A078153 A078154`
	KEYWORD	`easy,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Nov 26 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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