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 A255150 #11 Dec 31 2020 11:11:15 %S A255150 1,5,10,22,26,42,62,110,127,151,187,267,279,327,387,531,571,627,735, %T A255150 935,991,1063,1203,1403,1559,1735,1967,2335,2475,2707,3043,3483,3799, %U A255150 4103,4491,5035,5351,5695,6059,6523,6983,7407,7915,8499,8947,9435,10215,11023,11711,12335,13127,14247,14983,15767,16627,17867,18743,19831,20931 %N A255150 Partial sums of A253086. %C A255150 Also, total number of cubic ON cells after n generations in a three-dimensional cellular automaton in which A253086(n) gives the number of cubic ON cells in the n-th level of the structure starting from the top. An ON cell remains ON forever. The structure looks like an irregular stepped pyramid. %H A255150 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> %H A255150 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %Y A255150 Cf. A116520, A245542, A253086, A253908, A255048. %K A255150 nonn %O A255150 0,2 %A A255150 _Omar E. Pol_, Feb 15 2015