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 A159801 #10 Feb 24 2021 02:48:18 %S A159801 4,11,20,30,45,67,88,102,117,140,168,203,255,319,368,390,405,428,456, %T A159801 491,543,608,664,707,760,834,925,1047,1215,1391,1504,1542,1557,1580, %U A159801 1608,1643,1695,1760,1816,1859,1912,1986,2077,2199,2367,2544,2664,2723,2776,2850 %N A159801 Partial sums of A153001. %H A159801 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 A159801 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 A159801 Cf. A139250, A139251, A152980, A153001, A153006. %K A159801 nonn %O A159801 1,1 %A A159801 _Omar E. Pol_, May 18 2009 %E A159801 More terms from _Jinyuan Wang_, Mar 15 2020