login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A048059 Primes of the form n^2+n+11. 11
11, 13, 17, 23, 31, 41, 53, 67, 83, 101, 167, 193, 251, 283, 317, 353, 431, 563, 661, 823, 881, 941, 1201, 1493, 1571, 1733, 2081, 2267, 2663, 2767, 3203, 3433, 3671, 3793, 3917, 4567, 4703, 5413, 5711, 6173, 6491, 6653, 6983, 7151, 7321 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10000

MATHEMATICA

lst={}; Do[p=n^2+n+11; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 5*5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 27 2009]

Select[Table[n^2+n+11, {n, 0, 600}], PrimeQ] (* Vincenzo Librandi, Dec 07 2011 *)

PROG

(MAGMA) [ a: n in [0..200] | IsPrime(a) where a is n^2+n+11 ]; // Vincenzo Librandi, Dec 07 2011

CROSSREFS

Cf. A048058, A048097.

Sequence in context: A191031 A106890 A048058 * A106076 A006489 A032621

Adjacent sequences:  A048056 A048057 A048058 * A048060 A048061 A048062

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 21:56 EST 2012. Contains 205860 sequences.