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 A170880 #8 Feb 24 2021 02:48:19 %S A170880 0,1,6,11,22,29,44,63,86,93,108,129,158,187,236,295,342,349,364,385, %T A170880 414,443,492,553,606,635,686,757,844,951,1108,1271,1366,1373,1388, %U A170880 1409,1438,1467,1516,1577,1630,1659,1710,1781,1868,1975,2132,2297,2398,2427,2478 %N A170880 Partial sums of A151728. %H A170880 David Applegate, <a href="/A139250/a139250.anim.html">The movie version</a> %H A170880 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 A170880 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> %K A170880 nonn %O A170880 0,3 %A A170880 _N. J. A. Sloane_, Jan 07 2010