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 A224854 #18 Jul 23 2013 04:19:20 %S A224854 0,1,2,3,5,7,9,12,16,19,23,30,31,36,47,49,58,61,68,75,80,92,100,103, %T A224854 105,112,114,124,126,134,135,136,140,152,159,162,173,192,199,210,213, %U A224854 217,222,227,233,239,240,255,278,281,288,290,303,313,346,350,357 %N A224854 Numbers n such that 90*n + 11 and 90*n + 13 are twin prime. %C A224854 All matching entries for A201804 and A201816 are twin prime numbers. %t A224854 Select[Range[0, 499], PrimeQ[90# + 11] && PrimeQ[90# + 13] &] %Y A224854 Cf. A201804, A201816. %K A224854 nonn,easy %O A224854 1,3 %A A224854 _J. W. Helkenberg_, Jul 22 2013 %E A224854 Missing terms added from _Bruno Berselli_, Jul 23 2013