id:A084196 - OEIS Search Results

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Number of primes q<prime(n) such that q+1 divides prime(n)+1.

+0
6

0, 0, 1, 1, 3, 0, 2, 1, 5, 2, 2, 0, 3, 1, 6, 3, 6, 0, 1, 7, 0, 3, 6, 4, 1, 2, 2, 6, 0, 3, 3, 5, 2, 3, 3, 3, 0, 1, 9, 2, 9, 1, 8, 0, 3, 3, 1, 4, 6, 0, 3, 11, 0, 8, 2, 8, 6, 3, 0, 2, 1, 5, 3, 7, 0, 2, 1, 0, 5, 1, 2, 13, 2, 0, 3, 10, 3, 0, 2, 0, 11, 0, 11, 2, 5, 5, 6, 0, 4, 2, 6, 13, 2, 5, 2, 13, 4, 4, 1, 0, 1, 4 (list; graph; listen)

	OFFSET	`1,5`
	COMMENT	`a(A049084(A082539(n)))=0, a(A049084(A084197(n)))>0, a(A049084(A084198(n)))=1;`
	EXAMPLE	`n=5, prime(5)=11: (11+1) mod (q+1) = 0 for 3 primes q<11: 2, 3,` `and 5, therefore a(5)=3.`
	CROSSREFS	`Cf. A084198, A084200.` `Adjacent sequences: A084193 A084194 A084195 this_sequence A084197 A084198 A084199` `Sequence in context: A021335 A089595 A034389 this_sequence A127913 A135991 A102003`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 18 2003`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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