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 A025652 #7 Jul 06 2025 13:36:59 %S A025652 0,1,0,2,1,0,3,2,1,0,4,3,2,1,0,5,4,3,2,1,6,0,5,4,3,2,7,1,6,0,5,4,3,8, %T A025652 2,7,1,6,0,5,4,9,3,8,2,7,1,6,0,5,10,4,9,3,8,2,7,1,6,0,11,5,10,4,9,3,8, %U A025652 2,7,1,12,6,0,11,5,10,4,9,3,8,2,13,7,1,12,6,0,11,5,10,4,9,3,14,8,2,13,7,1,12,6 %N A025652 Exponent of 5 (value of i) in n-th number of form 5^i*7^j. %Y A025652 Cf. A003595. %K A025652 nonn %O A025652 1,4 %A A025652 _David W. Wilson_