login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031911 a(n) = prime(7*n - 6). 4

%I #18 Feb 18 2024 04:58:48

%S 2,19,47,79,109,151,191,229,269,311,353,397,439,479,523,577,617,659,

%T 709,757,811,857,907,953,1009,1049,1093,1151,1201,1249,1297,1361,1427,

%U 1459,1499,1559,1607,1657,1709,1759,1823,1877,1933,1997,2039

%N a(n) = prime(7*n - 6).

%H Ivan Panchenko, <a href="/A031911/b031911.txt">Table of n, a(n) for n = 1..1000</a>

%t Prime[7*Range[50]-6] (* _Harvey P. Dale_, Feb 27 2015 *)

%o (Magma) [ NthPrime(7*n-6): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 10 2011

%o (SageMath) [nth_prime(7*n-6) for n in range(1,61)] # _G. C. Greubel_, Feb 18 2024

%Y Cf. A000040, A031907, A031912, A031913, A031914.

%K nonn

%O 1,1

%A _Jeff Burch_

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)