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A125559 Numbers n such that 2n^3 + 7 is prime. For n>=8, bases in which 2007 is prime. 0
0, 2, 3, 5, 6, 8, 12, 17, 20, 26, 27, 32, 33, 36, 38, 41, 47, 50, 60, 65, 72, 75, 78, 87, 101, 111, 122, 123, 135, 137, 146, 152, 156, 162, 165, 173, 177, 188, 191, 195, 197, 221, 243, 246, 261, 267, 272, 291, 303, 311, 312, 321, 323, 330, 332, 333, 338, 362, 365 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..59.

PROG

(PARI) is(n)=isprime(2*n^3+7) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Sequence in context: A002243 A094763 A338916 * A331865 A087360 A111501

Adjacent sequences:  A125556 A125557 A125558 * A125560 A125561 A125562

KEYWORD

base,nonn,easy

AUTHOR

Zak Seidov, Jan 01 2007

STATUS

approved

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Last modified February 25 19:39 EST 2021. Contains 341618 sequences. (Running on oeis4.)