This site is supported by donations to The OEIS Foundation.

 Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A027886 Primes of form n + (n+1)^2 + (n+2)^3 + (n+3)^4 + (n+4)^5. 6
 3413, 171851, 800143, 21146189, 92361319, 233915567, 287889649, 351395251, 511939063, 611695897, 857765101, 1369378627, 1585717909, 4487418853, 7816697183, 14152933547, 22107078277, 26146483801, 30755875373, 69098926867, 84378396409, 155844134429, 174691507057 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..300 MATHEMATICA f[n_]:=(n+1)^1+(n+2)^2+(n+3)^3+(n+4)^4+(n+5)^5; lst={}; Do[a=f[n]; If[PrimeQ[a], AppendTo[lst, a]], {n, 0, 6!}]; lst (* Vladimir Joseph Stephan Orlovsky, May 30 2009 *) PROG (PARI) forstep(n=1, 100, 2, if(isprime(p=n^5 + 21*n^4 + 173*n^3 + 701*n^2 + 1403*n + 1114), print1(p", "))) \\ Charles R Greathouse IV, Oct 03 2013 (MAGMA) [a: n in [0..250] | IsPrime(a) where a is n+(n+1)^2+(n+2)^3 +(n+3)^4+(n+4)^5]; // Vincenzo Librandi, Oct 05 2013 CROSSREFS Sequence in context: A224744 A151772 A109482 * A165942 A179427 A031787 Adjacent sequences:  A027883 A027884 A027885 * A027887 A027888 A027889 KEYWORD nonn AUTHOR EXTENSIONS a(18)-a(23) from Vincenzo Librandi, Oct 04 2013 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 December 18 20:06 EST 2018. Contains 318245 sequences. (Running on oeis4.)