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A084401
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n-th partial product + 1 is a prime, where a(n)>1 for n>1.
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2
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1, 2, 2, 3, 3, 2, 6, 3, 2, 4, 7, 7, 3, 8, 6, 2, 3, 6, 9, 6, 14, 19, 11, 4, 4, 19, 4, 13, 3, 10, 13, 15, 4, 11, 9, 2, 5, 26, 19, 52, 21, 20, 63, 4, 19, 17, 6, 29, 19, 3, 5, 51, 11, 14, 15, 7, 12, 44, 34, 7, 21, 32, 3, 22, 10, 19, 19, 7, 20, 4, 22, 4, 17, 35, 47, 40, 14, 5, 14, 36, 39, 16
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Except for the first term, same as A036012. - David Wasserman (wasserma(AT)spawar.navy.mil), Dec 22 2004
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EXAMPLE
| 1+1 =2, 1*2+1=3, 1*2*2 +1=5 etc. are primes.
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CROSSREFS
| Cf. A084402.
Sequence in context: A045796 A127684 A036012 * A131619 A048485 A127714
Adjacent sequences: A084398 A084399 A084400 * A084402 A084403 A084404
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 31 2003
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EXTENSIONS
| More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Dec 22 2004
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