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 A153045 #31 Sep 08 2022 08:45:39 %S A153045 10,13,16,18,19,22,23,25,28,30,31,33,34,37,38,40,43,44,46,48,49,51,52, %T A153045 53,55,58,61,63,64,65,66,67,68,70,72,73,76,77,78,79,82,83,85,86,88,90, %U A153045 91,93,94,97,98,99,100,103,106,107,108,109,110,112,113,114 %N A153045 Numbers k such that 2*k-11 is not a prime. %C A153045 The terms are the values of 2*h*k + k + h + 6, where h and k are positive integers. - _Vincenzo Librandi_, Jan 19 2013 %H A153045 Vincenzo Librandi, <a href="/A153045/b153045.txt">Table of n, a(n) for n = 1..1000</a> %F A153045 a(n) = 5+A104275(n+1). [_R. J. Mathar_, Oct 22 2009] %t A153045 Select[Range[10,200], !PrimeQ[2*#-11]&] (* _Vladimir Joseph Stephan Orlovsky_, Feb 09 2012 *) %o A153045 (Magma) [n: n in [7..120] | not IsPrime(2*n - 11)]; // _Vincenzo Librandi_, Oct 11 2012 %o A153045 (Python) %o A153045 from sympy import isprime %o A153045 def ok(n): return n > 6 and not isprime(2*n-11) %o A153045 print(list(filter(ok, range(115)))) # _Michael S. Branicky_, Oct 13 2021 %Y A153045 Cf. A097338, A153043, A163652, A104275. %K A153045 nonn,easy %O A153045 1,1 %A A153045 _Vincenzo Librandi_, Dec 17 2008