id:A129193 - OEIS Search Results

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Least K such that J*p(n+1)#-K*p(n)#-1 and J*p(n+1)#-K*p(n)#+1 are twin primes for least J>0, K>0 and K<p(n+1), with p(n)=n-th prime and p(n)#=product of the first n primes = primorial(n).

+0
2

1, 2, 1, 2, 2, 3, 2, 12, 2, 15, 15, 18, 12, 23, 16, 31, 25, 56, 42, 9, 37, 8, 6, 6, 29, 23, 59, 62, 26, 125, 119, 71, 109, 111, 97, 97, 9, 59, 41, 103, 8, 152, 34, 184, 14, 145, 214, 21, 56, 95, 30, 43, 87, 216, 194, 148, 111, 19, 245, 279, 123, 103, 26, 31, 70, 126, 8, 103 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Least J values are given in A129192`
	EXAMPLE	`235-23-1=23 prime but 235-23+1=25 composite` `235-223-1=17 prime twin of 235-223+1=19 so K(2)=2 and J(2)=1`
	CROSSREFS	`Cf. A129192.` `Sequence in context: A075989 A085432 A029169 this_sequence A056812 A082533 A050373` `Adjacent sequences: A129190 A129191 A129192 this_sequence A129194 A129195 A129196`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Apr 02 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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