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A088415
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Primes p = prime(i) such that p(i)# - p(i+1) or p(i)# + p(i+1) or both are primes.
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3
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2, 3, 5, 7, 11, 13, 17, 19, 43, 53, 59, 73, 79, 83, 89, 149, 367, 431, 853, 4007, 6143, 8819, 8969
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Dario Alejandro Alpern, Factorization using the Elliptic Curve Method.
Hisanori Mishima, PI Pn + NextPrime (n = 1 to 100).
Hisanori Mishima, PI Pn - NextPrime (n = 1 to 100).
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EXAMPLE
| 3=p(2) is in the sequence because p(2)# + p(3) = 11 is prime.
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MATHEMATICA
| Do[ p = Product[Prime[i], {i, 1, n}]; q = Prime[n + 1]; If[ PrimeQ[p - q] || PrimeQ[p + q], Print[ Prime[n]]], {n, 1, 1435}]
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CROSSREFS
| Cf. A087714.
Sequence in context: A069709 A144755 A069090 * A175063 A198196 A139054
Adjacent sequences: A088412 A088413 A088414 * A088416 A088417 A088418
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KEYWORD
| hard,more,nonn
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AUTHOR
| Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 05 2003
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EXTENSIONS
| Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 17 2003
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