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A139019 a(1)=1. a(n) = smallest prime > a(n-1) such that sum{k=1 to n} a(k) is a power of a prime. 2
1, 2, 5, 11, 13, 17, 79, 83, 33554221, 33554501, 2198956146619, 2198956147781, 9002801275337659, 9002801275339331 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Next terms are a(15) = 2^1685 - 18010000530080323, a(16) = 2^1685 - 18010000529304693.

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A139020, A139021.

Sequence in context: A156672 A145669 A215427 * A031869 A194854 A045360

Adjacent sequences:  A139016 A139017 A139018 * A139020 A139021 A139022

KEYWORD

nonn

AUTHOR

Leroy Quet, Apr 06 2008

EXTENSIONS

Corrected and extended by M. F. Hasler, Apr 06 2008

a(11)-a(14) from Donovan Johnson, Nov 30 2008

a(15)-a(16) from Max Alekseyev, Feb 01 2010

STATUS

approved

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Last modified August 26 03:18 EDT 2019. Contains 326324 sequences. (Running on oeis4.)