The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A092968 Numbers n such that 2n^2 + 11 is a prime. 9
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 16, 18, 19, 20, 23, 24, 28, 29, 30, 31, 37, 41, 42, 43, 46, 49, 50, 52, 54, 60, 62, 63, 65, 69, 70, 71, 75, 83, 85, 87, 91, 94, 95, 96, 98, 100, 106, 108, 109, 114, 123, 124, 128, 130, 134, 136, 137, 139, 145, 146, 151, 152, 153, 158 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Vincenzo Librandi and Zak Seidov, Table of n, a(n) for n = 1..10000 (First 1000 terms from Vincenzo Librandi.) Eric Weisstein's World of Mathematics, Prime-Generating Polynomial FORMULA a(n) = sqrt((A050265(n)-11)/2). - Zak Seidov, Jul 25 2015 MATHEMATICA Select[Range[0, 200], PrimeQ[2#^2+11]&] PROG (MAGMA) [n: n in [1..160] | IsPrime(2*n^2 + 11)]; // Vincenzo Librandi, Dec 04 2012 CROSSREFS Cf. A050265. Sequence in context: A161979 A247810 A247800 * A177053 A151547 A008817 Adjacent sequences:  A092965 A092966 A092967 * A092969 A092970 A092971 KEYWORD nonn,easy AUTHOR Giovanni Teofilatto, Apr 20 2004 EXTENSIONS More terms from T. D. Noe, Dec 31 2004 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 25 00:48 EDT 2020. Contains 337333 sequences. (Running on oeis4.)