id:A103896 - OEIS Search Results

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Euler's totient of prime(n)! / prime(n)# + 1.

+0
3

1, 1, 4, 20, 15700, 161520, 659739168, 11887243200, 115875912594352, 1360481062410358294032, 40999220870977029249072, 1854483563489396099991763032000, 106016408292727234808287504322403328 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`a(n) = A000010(A103890(n)).`
	LINKS	`R. Zumkeller, p(n)!/p(n )#+1`
	CROSSREFS	`Cf. A103861.` `Sequence in context: A132511 A012841 A074195 this_sequence A083192 A128452 A076943` `Adjacent sequences: A103893 A103894 A103895 this_sequence A103897 A103898 A103899`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Feb 20 2005`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research