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A134486
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a(0)=1. For n>=1, a(n) = the largest prime dividing n*a(n-1) + 1.
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1
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1, 2, 5, 2, 3, 2, 13, 23, 37, 167, 557, 383, 4597, 29881, 167, 179, 191, 29, 523, 4969, 211, 277, 53, 61, 293, 37, 107, 17, 53, 769, 23071, 661, 641, 1511, 137, 109, 157, 83, 631, 107, 1427, 14627, 122867, 103, 1511, 191, 101, 1187, 251, 41, 293, 467, 1619
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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MATHEMATICA
| a = {1, 2}; Do[AppendTo[a, FactorInteger[Length[a]*a[[ -1]] + 1][[ -1, 1]]], {70}]; a - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 30 2007
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CROSSREFS
| Similar to A134487 but with different value of a(0).
Sequence in context: A100955 A049413 A102707 * A088006 A078311 A132743
Adjacent sequences: A134483 A134484 A134485 * A134487 A134488 A134489
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet Oct 28 2007
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EXTENSIONS
| More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Oct 30 2007
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