id:A087026 - OEIS Search Results

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Euler's totient of n-th cyclic number.

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77760, 1382399778816000, 98221093640386560, 1053590173895849103360, 821095240766161265049600000, 511883170649353472639948811682935064652736000 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Calculated with Dario Alpern's ECM;` `a(n) = A000010(A004042(n)).`
	LINKS	`Dario A. Alpern, Factorization using the Elliptic Curve Method.` `Eric Weisstein's World of Mathematics, CyclicNumber` `Eric Weisstein's World of Mathematics, Totient Function`
	CROSSREFS	`Cf. A001913, A087024.` `Sequence in context: A046720 A124489 A069044 this_sequence A133971 A133973 A133974` `Adjacent sequences: A087023 A087024 A087025 this_sequence A087027 A087028 A087029`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jul 30 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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