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 A153264 #22 Sep 08 2022 08:45:39 %S A153264 0,3,5,6,8,9,10,12,15,17,18,19,20,21,24,25,27,30,31,32,33,34,35,36,38, %T A153264 39,40,41,42,43,45,47,48,49,50,51,52,54,55,57,58,59,60,62,63,65,66,69, %U A153264 70,72,73,74,75,77,78,80,81,83,84,85,86,87,90,93,94,95,96,99 %N A153264 Numbers n such that 16*n+15 is not prime. %H A153264 Vincenzo Librandi, <a href="/A153264/b153264.txt">Table of n, a(n) for n = 1..1000</a> %e A153264 Distribution of the terms in the following triangular array: %e A153264 *; %e A153264 0,*; %e A153264 *,*,*; %e A153264 *,*,3,*; %e A153264 *,*,*,*,*; %e A153264 *,*,*,*,8,*; %e A153264 *,*,*,*,*,*,*; %e A153264 *,*,*,*,*,*,15,*; %e A153264 *,5,*,*,*,*,*,*,*; %e A153264 3,*,*,*,*,*,*,*,24,*; %e A153264 *,*,*,12,*,*,*,*,*,*,*; %e A153264 *,*,10,*,*,*,*,*,*,*,35,*; etc. %e A153264 where * marks the non-integer values of (2*h*k + k + h - 7)/8 with h >= k >= 1. - _Vincenzo Librandi_, Jan 15 2013 %t A153264 Select[Range[0, 200], !PrimeQ[16 # + 15] &] (* _Vincenzo Librandi_, Jan 12 2013 *) %o A153264 (Magma) [n: n in [0..150] | not IsPrime(16*n+15)]; // _Vincenzo Librandi_, Jan 12 2013 %Y A153264 Cf. A127575. %K A153264 nonn,easy %O A153264 1,2 %A A153264 _Vincenzo Librandi_, Dec 22 2008 %E A153264 0 added by _Arkadiusz Wesolowski_, Aug 03 2011