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 A160762 #11 Feb 09 2022 09:10:07 %S A160762 1,0,2,-2,2,2,2,-6,2,2,2,-2,6,6,-2,-14,2,2,2,-2,6,6,-2,-10,6,6,2,2 %N A160762 Convolved with the toothpick sequence A139250 = (2*n - 1): (1, 3, 5, 7, ...). %C A160762 The sequence convolved with (1, 2, 2, 2, ...) = A139251, (1, 2, 4, 4, 4, 8, 12, ...); i.e., first difference row of the toothpick sequence A139250. %H A160762 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 A160762 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 A160762 Cf. A139250, A139251. %K A160762 sign,more %O A160762 1,3 %A A160762 _Gary W. Adamson_, May 25 2009