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A122482 Primes p such that 1 + 4p + 12p^2 is prime. 0
7, 13, 19, 31, 79, 127, 139, 181, 199, 241, 271, 313, 337, 349, 373, 457, 523, 577, 643, 691, 727, 769, 787, 823, 907, 991, 1051, 1129, 1231, 1447, 1567, 1627, 1723, 1759, 1783, 1861, 1879, 1987, 1993, 2053, 2251, 2287, 2371, 2437, 2473, 2539, 2593, 2659 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes p such that 2*p is in A086285 (Numbers n such that 1+2n+3n^2 is prime).

LINKS

Table of n, a(n) for n=1..48.

PROG

(MAGMA) [ p: p in PrimesUpTo(5000) | IsPrime(1+4*p+12*p^2)] // Vincenzo Librandi, Jan 26 2011

CROSSREFS

Cf. A086285.

Sequence in context: A267803 A240971 A023255 * A265629 A283191 A048375

Adjacent sequences:  A122479 A122480 A122481 * A122483 A122484 A122485

KEYWORD

nonn

AUTHOR

Zak Seidov, Oct 20 2006

STATUS

approved

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Last modified September 26 02:27 EDT 2021. Contains 347664 sequences. (Running on oeis4.)