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 A070849 #14 Dec 17 2023 12:40:43 %S A070849 11,11,31,41,101,31,71,41,181,101,331,61,131,71,151,241,1021,181,191, %T A070849 101,211,331,461,241,251,131,271,281,1451,151,311,641,331,1021,701, %U A070849 181,1481,191,1171,401,821,211,431,661,1801,461,941,241,491,251,1021,521 %N A070849 Smallest prime == 1 mod (5n). %H A070849 Robert Price, <a href="/A070849/b070849.txt">Table of n, a(n) for n = 1..5000</a> %o A070849 (PARI) for(n=1,80,s=1; while((isprime(s)*s-1)%(5*n)>0,s++); print1(s,",")) %Y A070849 Cf. A070846, A070847, A070848, A070850, A070851, A070852, A070853. %Y A070849 Cf. A034694. %K A070849 nonn %O A070849 1,1 %A A070849 _Amarnath Murthy_, May 15 2002 %E A070849 More terms from _Benoit Cloitre_, May 18 2002