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A210360 Prime numbers p such that x^2 + x + p produces primes for x = 0..1 but not x = 2. 8
3, 29, 59, 71, 137, 149, 179, 197, 239, 269, 281, 419, 431, 521, 569, 599, 617, 659, 809, 827, 1019, 1031, 1049, 1061, 1151, 1229, 1289, 1319, 1451, 1619, 1667, 1697, 1721, 1787, 1877, 1931, 1949, 2027, 2087, 2111, 2129, 2141, 2309, 2339, 2381, 2549, 2591 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
The first term is A164926(2).
LINKS
MATHEMATICA
lookfor = 2; t = {}; n = 0; While[Length[t] < 50, n++; c = Prime[n]; i = 1; While[PrimeQ[i^2 + i + c], i++]; If[i == lookfor, AppendTo[t, c]]]; t
CROSSREFS
Sequence in context: A071150 A107189 A059761 * A049437 A171409 A220953
KEYWORD
nonn
AUTHOR
T. D. Noe, Apr 05 2012
STATUS
approved

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Last modified March 29 09:32 EDT 2024. Contains 371268 sequences. (Running on oeis4.)