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A085882 a(1) = 2, a(n) = smallest prime of the form 2*k*prime(n)*a(n-1) + 1. 0
2, 13, 131, 5503, 121067, 75545809, 17979902543, 2049708889903, 3771464357421521, 1093724663652241091, 406865574878633685853, 2137671730412341385471663, 17879486353168823348084989333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

a(3) = 2*prime(3)*a(2) + 1 = 2*5*13 +1 = 131.

CROSSREFS

Sequence in context: A215624 A247365 A107721 * A041509 A079165 A223075

Adjacent sequences:  A085879 A085880 A085881 * A085883 A085884 A085885

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Jul 08 2003

EXTENSIONS

More terms from Ray Chandler, Sep 13 2003

STATUS

approved

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Last modified February 24 14:56 EST 2020. Contains 332209 sequences. (Running on oeis4.)