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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
OFFSET
1,2
COMMENTS
Next terms are a(15) = 2^1685 - 18010000530080323, a(16) = 2^1685 - 18010000529304693.
CROSSREFS
Sequence in context: A156672 A145669 A215427 * A031869 A194854 A045360
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