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A179512 a(1) = 12, a(n) = prime(a(n-1)) - 2a(n-1). 7
12, 13, 15, 17, 25, 47, 117, 409, 1985, 13269, 116555, 1301043, 17911307, 296651169, 5792367991, 131137897895, 3395020992813, 99343099511585 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

MATHEMATICA

NestList[ Prime@# - 2# &, 12, 17]

CROSSREFS

Cf. A007097, A074271, A179274, A179511, A179513, A179514, A179515, A179516, A179517, A179518.

Sequence in context: A187234 A127354 A226099 * A125664 A262210 A074164

Adjacent sequences:  A179509 A179510 A179511 * A179513 A179514 A179515

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Jul 17 2010

STATUS

approved

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Last modified October 17 00:35 EDT 2021. Contains 348048 sequences. (Running on oeis4.)