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 A068233 #13 Apr 03 2023 10:36:10
%S A068233 7,199,199,32443,180799,180799,4338787,84885631,472798219,1786054267,
%T A068233 6024282871,64791932287,592175010019,6265824724519,7816088451907,
%U A068233 24660781037467
%N A068233 a(n) is the smallest prime p such that p and the next n-1 primes are all == 7 (mod 12).
%C A068233 Dickson's conjecture implies that a(n) exists for all n.
%H A068233 The Prime Glossary, <a href="https://t5k.org/glossary/page.php?sort=DicksonsConjecture">Dickson's conjecture</a>
%t A068233 For[i=n=1, True, Null, For[j=0, j<n&&Mod[Prime[i+j], 12]==7, j++, Null]; If[j==n, Print[Prime[i]]; n++, i++ ]]
%o A068233 (PARI) {i=n=1; while(1,j=0; while(j<n&&prime(i+j)%12==7,j++); if(j==n,print(prime(i)); n++,i++))}
%Y A068233 Cf. A068227, A068228, A068229, A040117, A068231, A068232, A068234, A068235.
%K A068233 nice,nonn
%O A068233 1,1
%A A068233 Ferenc Adorjan (fadorjan(AT)freemail.hu), Feb 22 2002
%E A068233 Edited by _Dean Hickerson_, Mar 06 2002
%E A068233 More terms from _Giovanni Resta_, Feb 18 2006
%E A068233 a(16) from _Giovanni Resta_, Aug 04 2013