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 A099981 #8 Aug 18 2019 14:03:33
%S A099981 6,10,15,22,26,34,38,46,51,57,62,69,77,85,87,93,95,111,118,121,123,
%T A099981 133,141,143,146,158,161,169,178,185,194,202,205,209,214,217,219,226,
%U A099981 237,249,254,262,267,278,289,295,299,302,305,314,321,326,329,335,341,355
%N A099981 Bisection of A001358.
%p A099981 P:=[seq(ithprime(n),n=1..100)]: B:={seq(seq(P[i]*P[j],j=1..100),i=1..100)}:C:={seq(B[k],k=1..140)}: seq(C[2*j],j=1..70); # _Emeric Deutsch_, Dec 14 2004
%K A099981 nonn,easy
%O A099981 0,1
%A A099981 _N. J. A. Sloane_, Nov 19 2004
%E A099981 More terms from _Emeric Deutsch_, Dec 14 2004