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A153136 Smallest sequence of primes such that no sum of at least two terms is prime 4
2, 7, 13, 43, 103, 1627, 25349, 315743, 7338823, 42939980423 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
PROG
(PARI) a=[]; for(n=1, 10, forprime(p=2, , setsearch(a, p)&&next; for(i=1, 2^#a-1, isprime(normlp(vecextract(a, i), 1)+p)&&next(2)); a=concat(a, p); print1(p", "))) \\ Very simplistic, should at least avoid an odd number of odd primes in the partial sum of earlier terms. \\ M. F. Hasler, Jan 29 2015
CROSSREFS
Sequence in context: A026555 A262727 A129592 * A178607 A321407 A127487
KEYWORD
more,nonn
AUTHOR
Benoit Jubin, Dec 19 2008
EXTENSIONS
a(8)-a(10) from Donovan Johnson, Dec 23 2008
STATUS
approved

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Last modified July 23 03:47 EDT 2024. Contains 374544 sequences. (Running on oeis4.)