A028886 - OEIS

%I #25 Sep 08 2022 08:44:50

%S 17,41,73,113,281,353,433,521,617,953,1217,1361,2017,2393,2593,2801,

%T 4217,4481,6553,7561,8273,8641,10193,10601,13217,13681,14153,14633,

%U 15121,16633,17681,18217,20441,21017,21601,22193,25913,26561,29921

%N Primes of the form k^2 - 8.

%C Primes of A028884. Also subsequence of A038873. - _Klaus Purath_, Jan 28 2020

%H Vincenzo Librandi, <a href="/A028886/b028886.txt">Table of n, a(n) for n = 1..8000</a>

%H Patrick De Geest, <a href="http://www.worldofnumbers.com/consemor.htm">Palindromic Quasipronics of the form n(n+x)</a>

%t Select[Range[3,1000]^2-8,PrimeQ] (* _Vincenzo Librandi_, Dec 01 2011 *)

%o (Magma) [a: n in [3..300] | IsPrime(a) where a is n^2-8]; // _Vincenzo Librandi_, Dec 01 2011

%Y Cf. A028884, A038873.

%K nonn,easy

%O 1,1

%A _Patrick De Geest_