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 A358472 #6 Nov 18 2022 12:30:22 %S A358472 0,0,0,0,0,0,1,2,2,3,3,3,3,4,5,5,5,5,5,6,6,6,7,8,9,11,12,12,14,16,18, %T A358472 21,26,31,35,38,40,43,46,49,53,57,61,65,69,73,78,83,88,93,98,104,110, %U A358472 116,122,128,134,140,147,154,161,168,175,182,189,196,204,212,220,228,236,245,254,263,271,279,287,295,303,311 %N A358472 Number of 4's that appeared by n-th step when constructing A030717. %Y A358472 Partial sums of A358477. %Y A358472 Cf. A358466, A358468, A358470, A358473, A358474, A358475. %Y A358472 Cf. A030717. %K A358472 nonn %O A358472 1,8 %A A358472 _Seiichi Manyama_, Nov 18 2022