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 A205151 #10 Jul 23 2021 09:00:20 %S A205151 9,10,3,5,4,7,6,16,1,2,6,9,6,3,12,8,6,6,6,1,2,3,10,6,34,3,4,11,1,6,2, %T A205151 4,2,3,71,3,10,3,2,9,6,1,5,7,4,5,19,3,6,17,2,17,12,2,36,11,2,4,10,3, %U A205151 50,1,12,2,31,1,6,13,74,23,1,2,50,5,24,23,4,1,8 %N A205151 a(n) = A205150(n)/n. %C A205151 For a guide to related sequences, see A204892. %H A205151 Michel Marcus, <a href="/A205151/b205151.txt">Table of n, a(n) for n = 1..10000</a> %t A205151 (See the program at A205146.) %o A205151 (PARI) s(m) = prime(m)*prime(m+1); %o A205151 isok(k, n) = my(sk=s(k)); for (j=1, k-1, if (!Mod(sk-s(j), n), return (j))); %o A205151 a(n) = my(k=1, x); while (!(j=isok(k, n)), k++); (s(k) - s(j))/n; \\ _Michel Marcus_, Jul 23 2021 %Y A205151 Cf. A205146, A204892. %K A205151 nonn %O A205151 1,1 %A A205151 _Clark Kimberling_, Jan 25 2012 %E A205151 More terms from _Michel Marcus_, Jul 23 2021