id:A103891 - OEIS Search Results

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Smallest prime factor of prime(n)! / prime(n)# + 1.

+0
4

2, 2, 5, 5, 11, 7, 19, 31, 27893, 223, 554797, 10333, 29, 61, 28652131, 293049347, 7731517, 1483, 73, 337809273983, 67, 440939, 1321, 94099, 89, 107, 281 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = A020639(A103890(n)).`
	LINKS	`R. Zumkeller, p(n)!/p(n )#+1`
	CROSSREFS	`Cf. A103892, A103856.` `Adjacent sequences: A103888 A103889 A103890 this_sequence A103892 A103893 A103894` `Sequence in context: A062405 A071181 A079964 this_sequence A005294 A052943 A032580`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 20 2005`

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Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.

AT&T Labs Research