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 A160746 #7 Feb 24 2021 02:48:18 %S A160746 0,4,8,16,24,32,40,56,72,80,88,104,120,136,152,184,216,224,232,248, %T A160746 264,280,296,328,360,376,392,424,456,488,520,584,648,656,664,680,696, %U A160746 712,728,760,792,808,824,856,888,920,952,1016,1080,1096,1112,1144,1176,1208,1240 %N A160746 a(n) = A151566(n)*4. %H A160746 David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.] %H A160746 N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a> %Y A160746 Cf. A139250, A151566, A160720, A160722, A160736, A160738, A160740, A160742, A160744. %K A160746 nonn %O A160746 0,2 %A A160746 _Omar E. Pol_, May 25 2009 %E A160746 More terms from _N. J. A. Sloane_, May 25 2009