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 A255603 #10 Dec 31 2020 11:11:15 %S A255603 1,10,18,50,66,154,170,274,290,426,498,810,866,1226,1302,1770,1846, %T A255603 2290,2446,3154,3306,4234,4398,5394,5550,6474,6766,8082,8338,9858, %U A255603 10206,11882,12186,13954,14354,16282,16690,18730,19254,21882,22398,25082,25770,29042,29786,33658,34342,38034,38790,42514,43354,47434 %N A255603 Partial sums of A253090. %C A255603 Also, total number of cubic ON cells after n generations in a three-dimensional structure in which A253090(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 A255603 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %Y A255603 Cf. A253090, A255048, A255601. %K A255603 nonn %O A255603 0,2 %A A255603 _Omar E. Pol_, Feb 27 2015