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 A028883 Primes of form n^2 - 7. 4
 2, 29, 137, 317, 569, 1289, 2297, 2909, 3593, 4349, 8093, 9209, 11657, 17417, 19037, 24329, 26237, 30269, 34589, 36857, 41609, 46649, 49277, 51977, 57593, 60509, 72893, 93629, 101117, 108893, 129593, 133949, 147449, 152093, 166457, 191837, 202493, 219017, 224669 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Subsequence of primes of A028881. - Michel Marcus, Apr 11 2015 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..3000 Patrick De Geest, Palindromic Quasipronics of the form n(n+x) MAPLE A028883:=n->`if`(isprime(n^2-7), n^2-7, NULL): seq(A028883(n), n=1..500); # Wesley Ivan Hurt, Apr 11 2015 MATHEMATICA Select[Range[3, 410]^2 - 7, PrimeQ] (* Harvey P. Dale, Sep 20 2011 *) PROG (MAGMA) [a: n in [3..500] | IsPrime(a) where a is n^2-7]; // Vincenzo Librandi, Dec 01 2011 (PARI) lista(nn) = forprime (n=1, nn, if (issquare(n+7), print1(n, ", "))) \\ Michel Marcus, Apr 11 2015 CROSSREFS Sequence in context: A062618 A128842 A308899 * A024200 A137625 A132412 Adjacent sequences:  A028880 A028881 A028882 * A028884 A028885 A028886 KEYWORD nonn,easy AUTHOR EXTENSIONS More terms from Michel Marcus, Apr 11 2015 STATUS approved

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Last modified February 20 13:03 EST 2020. Contains 332076 sequences. (Running on oeis4.)