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 A246334 #18 Oct 03 2018 04:52:04
%S A246334 1,5,17,29,61,73,109,157,229,241,277,329,429,477,573,633,861,873,909,
%T A246334 961,1061,1113,1237,1353,1645,1661,1893,1969,2325,2321,2669,2693,3245,
%U A246334 3305,3341,3393,3493,3545,3669,3785,4077,4097,4357,4489,4909,4929,5437,5553,6373
%N A246334 First bisection of A246333.
%H A246334 N. J. A. Sloane, <a href="http://arxiv.org/abs/1503.01168">On the Number of ON Cells in Cellular Automata</a>, arXiv:1503.01168, 2015
%H A246334 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>
%t A246334 max = 100; (Partition[Total[Flatten[#]]& /@ CellularAutomaton[{493, {2, {{0, 2, 0}, {2, 1, 2}, {0, 2, 0}}}, {1, 1}}, {{{1}}, 0}, max], 2] /. {a_, b_} -> {a, (max + 1 - Mod[max, 2])^2 - b} )[[All, 1]] (* _Jean-François Alcover_, Oct 03 2018 *)
%Y A246334 Cf. A246333, A246335.
%K A246334 nonn
%O A246334 0,2
%A A246334 _N. J. A. Sloane_, Aug 30 2014
%E A246334 Minor typo in name corrected by _Vincenzo Librandi_, Aug 30 2014