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 A057810 #14 Sep 01 2018 17:46:01 %S A057810 2,2,2,2,3,3,3,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8, %T A057810 8,9,9,9,10,10,10,10,10,10,10,10,10,11,12,12,12,12,12,12,12,12,12,12, %U A057810 12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13 %N A057810 Quotients n/pi(n) for n in A057809. %H A057810 Giovanni Resta, <a href="/A057810/b057810.txt">Table of n, a(n) for n = 1..1161</a> %t A057810 (#/PrimePi[#] &) /@ Select[Range[2, 3*10^6], IntegerQ[#/PrimePi[#]] &] (* _Michael De Vlieger_, Apr 15 2015, after _N. J. A. Sloane_ at A057809 *) %Y A057810 Cf. A000720, A057809, A038627, A256394. %K A057810 nonn,easy %O A057810 1,1 %A A057810 _N. J. A. Sloane_, Nov 07 2000 %E A057810 More terms from _Naohiro Nomoto_, Jun 26 2001