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 A025651 #7 Jul 06 2025 14:43:46 %S A025651 0,1,0,2,1,0,3,2,1,0,4,3,2,1,0,5,4,3,2,1,0,6,5,4,3,2,1,0,7,6,5,4,3,2, %T A025651 1,0,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,10,0,9,8,7,6,5,4,3,2,11,1,10, %U A025651 0,9,8,7,6,5,4,3,12,2,11,1,10,0,9,8,7,6,5,4,13,3,12,2,11,1,10,0,9,8,7,6,5,14,4 %N A025651 Exponent of 5 (value of i) in n-th number of form 5^i*6^j. %Y A025651 Cf. A025622. %K A025651 nonn %O A025651 1,4 %A A025651 _David W. Wilson_