id:A090185 - OEIS Search Results

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Least k such that k*p(n)#+p(n+1) is prime, where p(i)# denotes ith-primorial and p(i) denotes ith-prime.

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1, 1, 1, 2, 6, 1, 1, 1, 2, 8, 3, 3, 8, 1, 2, 1, 1, 5, 12, 10, 1, 2, 18, 4, 3, 4, 14, 26, 2, 7, 38, 3, 15, 13, 8, 23, 42, 6, 45, 12, 5, 11, 26, 2, 3, 2, 16, 9, 7, 21, 39, 21, 76, 2, 18, 16, 42, 37, 6, 23, 10, 8, 51, 28, 33, 8, 94, 22, 4, 2, 11, 53, 1, 53, 10, 3, 10, 97, 19, 25, 4, 4, 15, 38, 70 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`kp(n)#+p(n+1) is the least prime > kp(n)#+p(n+1)+1 and if kp(n)#+p(n+1)+1 is not prime it is the least prime > kp(n)#+p(n+1)`
	EXAMPLE	`6235711+13=13873, 6p(5)#+p(6)=13873, 6 is the least k for n=5`
	CROSSREFS	`Sequence in context: A068959 A021387 A127508 this_sequence A059813 A097099 A065529` `Adjacent sequences: A090182 A090183 A090184 this_sequence A090186 A090187 A090188`
	KEYWORD	`base,nonn`
	AUTHOR	`Pierre CAMI (colettecami(AT)aol.com), Jan 21 2004`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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