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Search: id:A034881
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| A034881 |
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Smallest number a(n) such that 1+a(n)a(n-i) is prime for all i. |
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+0
3
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| 1, 2, 6, 18, 30, 270, 606, 123120, 888456, 23070450, 238550160, 8282903640, 72789145650
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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Sci.math, "Sets producing primes."
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CROSSREFS
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Sequence in context: A050832 A032649 A066286 this_sequence A146345 A064842 A101695
Adjacent sequences: A034878 A034879 A034880 this_sequence A034882 A034883 A034884
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KEYWORD
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easy,nonn
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AUTHOR
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Erich Friedman (erich.friedman(AT)stetson.edu)
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EXTENSIONS
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a(8) to a(12) found by Phil Carmody. a(14) > 1.04*10^13 (if it exists)
More terms from Don Reble (djr(AT)nk.ca), Aug 11 2003
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