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 A002099 M0395 N0152 #17 Oct 14 2023 15:50:38
%S A002099 0,0,2,3,0,11,0,17,15,14,51,11,77,35,103,131,160,227,330,218,426,794,
%T A002099 426,1533,641,2072,2071,2491,4381,3880,3925,6079,5446,7914,14017,
%U A002099 10421,19768,15486,30589,31901,46119,50917,65574,48002,85155,112648,115127,150995
%N A002099 G.f.: -1 + Product_{k>=1} (1 + prime(k)*x^prime(k)).
%D A002099 S. M. Kerawala, On a Pair of Arithmetic Functions Analogous to Chawla's Pair, J. Natural Sciences and Mathematics, 9 (1969), circa p. 103.
%D A002099 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D A002099 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A002099 T. D. Noe, <a href="/A002099/b002099.txt">Table of n, a(n) for n = 0..500</a>
%Y A002099 Cf. A002098.
%K A002099 nonn
%O A002099 0,3
%A A002099 _N. J. A. Sloane_
%E A002099 Better description and more terms from _Vladeta Jovovic_, May 09 2003