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 A151748 #6 Feb 24 2021 02:48:18 %S A151748 11,18,25,29,39,55,57,41,40,61,79,97,132,161,133,65,40,61,79,97,133, %T A151748 167,155,122,141,201,255,326,424,449,309,113,40,61,79,97,133,167,155, %U A151748 122,141,201,255,326,425,455,331,170,141,201,255,327,433,489,432,385,483,657,836 %N A151748 If the first two terms of the rows of the triangle in A151747 are omitted, this is what the rows converge to. %H A151748 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 A151748 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 A151748 nonn %O A151748 0,1 %A A151748 _N. J. A. Sloane_, Jun 16 2009, Jun 17 2009