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A191458 Primes p such that the polynomial x^2+x+p generates only primes for x=1..11. 7
17, 41, 1761702947, 8776320587, 10102729577, 11085833111, 177558051107, 273373448057, 473787509537, 557149355507, 715464238661, 1359854730821, 2131528031441, 2170341748697, 2236159108277, 2308235320997, 2751203698151, 3247566894821, 3288002848511, 3424305123047 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A191457.

The sequence is infinite under Dickson's conjecture. - Charles R Greathouse IV, Oct 11 2011

LINKS

Charles R Greathouse IV and Zak Seidov, Table of n, a(n) for n = 1..79

PROG

(PARI) is(n)=for(x=0, 11, if(!isprime(x^2+x+n), return(0))); 1 \\ Charles R Greathouse IV, Sep 14 2015

CROSSREFS

Cf. A187060, A190800, A191456, A191457.

Sequence in context: A201028 A090295 A191457 * A253592 A253605 A044094

Adjacent sequences:  A191455 A191456 A191457 * A191459 A191460 A191461

KEYWORD

nonn

AUTHOR

Zak Seidov, Jun 02 2011

EXTENSIONS

a(12)-a(20) from Charles R Greathouse IV, Oct 17 2011

STATUS

approved

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Last modified December 8 02:07 EST 2016. Contains 278902 sequences.