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A085872 a(1) = 2, a(2n) = smallest prime of the form k*a(2n-1) -1, k >1, a(2n+1) = smallest prime of the form r*a(2n)+1, r >1. 1
2, 3, 7, 13, 53, 211, 2111, 8443, 33773, 202637, 1621097, 16210969, 453907133, 8170328393, 196087881433, 1176527288597, 7059163731583, 254129894336987, 6099117464087689, 158577054066279913, 8246006811446555477 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

CROSSREFS

Cf. A085871.

Sequence in context: A166945 A257393 A273814 * A070858 A061067 A104366

Adjacent sequences:  A085869 A085870 A085871 * A085873 A085874 A085875

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Jul 07 2003

EXTENSIONS

More terms from Ray Chandler, Jul 08 2003

STATUS

approved

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Last modified June 20 05:01 EDT 2019. Contains 324229 sequences. (Running on oeis4.)