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 A358470 #15 Nov 18 2022 12:30:26 %S A358470 0,0,0,0,1,3,5,6,7,7,8,11,15,18,20,23,25,27,29,31,35,39,42,45,48,51, %T A358470 56,61,64,67,70,73,75,78,82,88,94,101,109,117,124,133,143,155,168,181, %U A358470 193,207,222,237,253,269,285,302,319,337,356,375,393,412,431,450,470,491,512,533,553,573,594,615,636,657,678 %N A358470 Number of 3's that appeared by n-th step when constructing A030717. %Y A358470 Partial sums of A358476. %Y A358470 Cf. A358466, A358468, A358472, A358473, A358474, A358475. %Y A358470 Cf. A030717. %K A358470 nonn %O A358470 1,6 %A A358470 _Seiichi Manyama_, Nov 18 2022