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A162905 Primes of form p^2-6, p also a prime. 0
3, 19, 43, 163, 283, 523, 2203, 2803, 4483, 5323, 6883, 9403, 11443, 12763, 27883, 37243, 38803, 69163, 85843, 100483, 134683, 139123, 146683, 208843, 214363, 218083, 237163, 253003, 310243, 351643, 368443, 413443, 418603, 452923, 458323 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a(n) = (A137270(n))^2-6.

MATHEMATICA

f[n_]:=n^2-6; lst={}; Do[p=Prime[n]; If[PrimeQ[f[p]], AppendTo[lst, f[p]]], {n, 7!}]; lst

CROSSREFS

Sequence in context: A146664 A103176 A028880 * A201875 A063553 A099007

Adjacent sequences:  A162902 A162903 A162904 * A162906 A162907 A162908

KEYWORD

nonn

AUTHOR

Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 16 2009

EXTENSIONS

Cross-reference turned into formula by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 27 2009

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Last modified February 16 19:06 EST 2012. Contains 205945 sequences.