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A157929 Numbers n such that n^2+4, n^2+8, and n^2+10 are prime. 1
3, 57, 1203, 2307, 3837, 3843, 4227, 4257, 5277, 7053, 7473, 9933, 10893, 11487, 12603, 23223, 32397, 44037, 44517, 46893, 48327, 48693, 52083, 52923, 54813, 55647, 61827, 61977, 62493, 71733, 71793, 77097, 81837, 97383, 98487, 98853, 99393, 102117, 102753, 109617, 112347 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..200

MATHEMATICA

Select[Range[112347], PrimeQ[#^2+4] && PrimeQ[#^2+8] && PrimeQ[#^2+10]&]

PROG

(MAGMA)[n: n in [0..150000]|IsPrime(n^2+4) and IsPrime(n^2+8) and IsPrime(n^2+10)]

CROSSREFS

Cf. A086220.

Sequence in context: A171356 A060483 A139746 * A053725 A053774 A009723

Adjacent sequences:  A157926 A157927 A157928 * A157930 A157931 A157932

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Dec 16 2010

STATUS

approved

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Last modified May 23 03:06 EDT 2013. Contains 225585 sequences.