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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254462 Primes prime(n) such that prime(n) + 5*n is also prime. 3

%I

%S 2,3,13,19,29,37,43,61,113,151,163,173,223,229,239,251,311,317,337,

%T 359,373,397,409,433,503,601,647,659,673,683,757,821,857,863,887,941,

%U 1061,1097,1109,1123,1213,1249,1291,1307,1373,1423,1439,1493,1511,1531,1559

%N Primes prime(n) such that prime(n) + 5*n is also prime.

%e prime(2)=3 is in the sequence because 3+5*2 = 13 is prime.

%e prime(6)=13 is in the sequence because 13+5*6 = 43 is prime.

%t Prime[Select[Range[300], PrimeQ[Prime[#] + 5 #] &]]

%o (MAGMA) [NthPrime(n): n in [1..300] | IsPrime(NthPrime(n)+5*n)]

%Y Cf. A061067, A231232, A231383.

%K nonn

%O 1,1

%A _Vincenzo Librandi_, Feb 04 2015

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 13:44 EDT 2021. Contains 345417 sequences. (Running on oeis4.)