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 A090833 #11 Sep 23 2016 13:06:30 %S A090833 41,290,550,850,896,1051,1060,2106,2241,2456,2631,2650,2911,3035,3245, %T A090833 3886,4361,5015,5105,8935,9346,10366,10615,11890,12586,12925,13131, %U A090833 13485,13796,13905,14071,14850,14896,15215,15736,15876,15985,17451,17560 %N A090833 Numbers n such that 6n+5, 6n+11, 6n+17, 6n+23 are consecutive primes or 6n+1, 6n+7, 6n+13, 6n+19 are consecutive primes. %H A090833 Harvey P. Dale, <a href="/A090833/b090833.txt">Table of n, a(n) for n = 1..1000</a> %t A090833 Select[Range[20000],(PrimeQ[6#+5]&&Differences[NestList[ NextPrime[ #]&, 6 #+5,3]] =={6,6,6})||(PrimeQ[6#+1]&&Differences[NestList[NextPrime[#]&,6 #+1,3]]=={6,6,6})&] (* _Harvey P. Dale_, Sep 23 2016 *) %o A090833 (PARI) p=2;q=3;r=5;forprime(s=7,1e5,if(s-p==18&&s-q==12&&s-r==6,print1(p\6", "));p=q;q=r;r=s) \\ _Charles R Greathouse IV_, Dec 27 2011 %Y A090833 Cf. A033451, A090832, A090834, A090835, A090836, A090837, A090838, A090839. %K A090833 easy,nonn %O A090833 1,1 %A A090833 _Pierre CAMI_, Dec 09 2003 %E A090833 a(19) from _Charles R Greathouse IV_, Dec 27 2011