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A153138 Smallest sequence of odd primes such that no sum of at least two terms is prime 2
3, 5, 7, 83, 317, 383, 29567, 423509, 118661483, 52542428123 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..10.

PROG

(PARI) a=[]; for(n=1, 10, forprime(p=if(a, a[#a]+2, 3), , 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 terms in the partial sum of earlier terms. \\ M. F. Hasler, Jan 29 2015

CROSSREFS

Cf. A153136, A153137, A133660, A052349, A254337, A254341.

Sequence in context: A119939 A306573 A254925 * A201270 A160360 A082697

Adjacent sequences:  A153135 A153136 A153137 * A153139 A153140 A153141

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 May 8 13:26 EDT 2021. Contains 343666 sequences. (Running on oeis4.)