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 A004429 #8 Oct 26 2023 00:11:11 %S A004429 0,1,2,3,4,5,6,7,8,9,0,1,1,2,2,2,2,3,3,3,0,1,2,2,3,3,3,4,4,4,0,2,2,3, %T A004429 3,4,4,5,5,5,0,2,3,3,4,4,5,5,6,6,0,2,3,4,4,5,5,6,6,7,0,2,3,4,5,5,6,6, %U A004429 7,7,0,3,4,5,5,6,6,7,7,8,0,3,4,5,6,6,7,7,8,8,0,3,4,5,6,7,7,8,8,9,0,0,0,0,0,0,0,0 %N A004429 Geometric mean of digits of n (rounded to nearest integer). %o A004429 (PARI) A004429(n)=round(sqrtn(prod(i=1,#n=digits(n),n[i]),#n)) \\ _M. F. Hasler_, May 10 2015 %Y A004429 Cf. A004428, A007954, A257830. %K A004429 nonn,base %O A004429 0,3 %A A004429 _N. J. A. Sloane_