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 A025655 #7 Jul 06 2025 12:43:03 %S A025655 0,1,0,2,1,0,3,2,1,4,0,3,2,5,1,4,0,3,6,2,5,1,4,7,0,3,6,2,5,8,1,4,7,0, %T A025655 3,6,9,2,5,8,1,4,7,10,0,3,6,9,2,5,8,11,1,4,7,10,0,3,6,9,12,2,5,8,11,1, %U A025655 4,7,10,0,13,3,6,9,12,2,5,8,11,1,14,4,7,10,0,13,3,6,9,12,2,15,5,8,11,1,14,4,7 %N A025655 Exponent of 5 (value of i) in n-th number of form 5^i*10^j. %Y A025655 Cf. A025625. %K A025655 nonn %O A025655 1,4 %A A025655 _David W. Wilson_