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 A358475 #7 Nov 18 2022 12:30:08 %S A358475 0,0,0,0,0,0,0,0,0,1,3,3,3,3,3,3,3,3,3,3,3,4,4,5,5,6,7,9,10,11,12,13, %T A358475 14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58, %U A358475 60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124 %N A358475 Number of 7's that appeared by n-th step when constructing A030717. %Y A358475 Partial sums of A358480. %Y A358475 Cf. A358466, A358468, A358470, A358472, A358473, A358474. %Y A358475 Cf. A030717. %K A358475 nonn %O A358475 1,11 %A A358475 _Seiichi Manyama_, Nov 18 2022