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A086506 a(1) = 2, a(2n) = smallest prime of the type r*a(2n-1) +1, a(2n+1) = smallest prime of the type s*a(2n) -1. 0
2, 3, 5, 11, 43, 173, 691, 6911, 69109, 1658617, 3317233, 19903399, 39806797, 238840783, 4299134093, 25794804559, 464306482061, 8357516677099, 100290200125187, 2607545203254863, 73011265691136163, 292045062764544653 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..22.

CROSSREFS

Sequence in context: A276531 A276532 A003686 * A109462 A000905 A065296

Adjacent sequences:  A086503 A086504 A086505 * A086507 A086508 A086509

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Jul 29 2003

EXTENSIONS

More terms from David Wasserman, Mar 09 2005

STATUS

approved

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Last modified May 31 09:30 EDT 2020. Contains 334748 sequences. (Running on oeis4.)