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 A078151 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. 0
 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; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS 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: A298833 A298621 A299587 * A278179 A100748 A072235 Adjacent sequences: A078148 A078149 A078150 * A078152 A078153 A078154 KEYWORD easy,nonn AUTHOR Labos Elemer, Nov 26 2002 STATUS approved

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Last modified December 7 10:26 EST 2022. Contains 358656 sequences. (Running on oeis4.)