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 A255601 #9 Dec 31 2020 11:11:15 %S A255601 1,10,30,59,128,172,284,368,596,677,930,1170,1531,1860,2268,2704,3256, %T A255601 3800,4456,5308,6056,6808,7848,9021,10118,11046,12435,14292,15500, %U A255601 16744,18408,20865,22313,23949,25977,28709,30873,32830,35671,38875,41724,44025,47529,51398,54946,57702,61842,66351,70411,73799 %N A255601 Partial sums of A253089. %C A255601 Also, total number of cubic ON cells after n generations in a three-dimensional structure in which A253089(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 A255601 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %Y A255601 Cf. A253089, A255048, A255603. %K A255601 nonn %O A255601 0,2 %A A255601 _Omar E. Pol_, Feb 27 2015