This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A153051 #16 Sep 08 2022 08:45:39 %S A153051 9,13,16,19,21,22,25,26,28,31,33,34,36,37,40,41,43,46,47,49,51,52,54, %T A153051 55,56,58,61,64,66,67,68,69,70,71,73,75,76,79,80,81,82,85,86,88,89,91, %U A153051 93,94,96,97,100,101,102,103,106,109,110,111,112,113,115,116,117,118,119 %N A153051 Numbers n>=9 such that 2*n-17 is not a prime. %C A153051 Adding 1 to each entry yields A153041. [From _R. J. Mathar_, Dec 19 2008] %C A153051 The terms after a(1) are the values of 2*h*k + k + h + 9, where h and k are positive integers.- _Vincenzo Librandi_, Jan 19 2013 %H A153051 Vincenzo Librandi, <a href="/A153051/b153051.txt">Table of n, a(n) for n = 1..1000</a> %t A153051 Select[Range[9, 200], !PrimeQ[2 # - 17] &] (* _Vincenzo Librandi_, Jan 19 2013 *) %o A153051 (Magma) [n: n in [9..150] | not IsPrime(2*n - 17)]; // _Vincenzo Librandi_, Jan 19 2013 %Y A153051 Cf. A098605, A163674. %K A153051 nonn,easy %O A153051 1,1 %A A153051 _Vincenzo Librandi_, Dec 17 2008 %E A153051 57 removed by _R. J. Mathar_, Dec 19 2008