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A087418
Consider pairs (p,k) such that p is a prime, q and r are the two primes following p, 0<k<q and k*primorial(p)+q and k*primorial(p)+r are consecutive primes; sequence gives values of p.
1
2, 3, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7, 7, 11, 11, 11, 13, 13, 19, 23, 23, 29, 31, 37, 37, 41, 41, 41, 41, 41, 43, 53, 59, 61, 67, 67, 71, 73, 89, 89, 97, 97, 101, 101, 103, 103, 107, 137, 137, 173, 173, 179, 181, 191, 193, 197, 211, 223, 227, 227, 239, 251, 257, 263, 293, 311
OFFSET
1,1
EXAMPLE
3 occurs three times because k*(2*3)+5 and k*(2*3)+7 are consecutive primes for k=1,2,4.
CROSSREFS
Sequence in context: A295820 A164023 A097224 * A087731 A308172 A227559
KEYWORD
nonn
AUTHOR
Pierre CAMI, Oct 22 2003
EXTENSIONS
Edited by Don Reble, Nov 09 2005
STATUS
approved