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A096100
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a(1) = 1; for n > 1: a(n) = smallest number >1 such that product of any two or more successive terms + 1 is prime.
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2
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OFFSET
| 1,2
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COMMENTS
| Next term > 20000000 if it exists..
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EXAMPLE
| a(4) is not 2 since 2*2*2+1 = 9 is composite, but 2*3+1 = 7, 2*2*3+1 = 13, 1*2*2*3+1 = 13 are all prime, hence a(4) = 3.
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CROSSREFS
| Sequence in context: A032908 A192366 A060631 * A195694 A021451 A183442
Adjacent sequences: A096097 A096098 A096099 * A096101 A096102 A096103
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KEYWORD
| more,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 24 2004
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EXTENSIONS
| Edited, corrected and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jul 05 2004
a(10) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Apr 22 2008
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