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 A025729 #11 Jul 06 2025 13:38:18 %S A025729 1,3,6,10,16,23,31,41,52,64,77,92,108,125,144,164,185,207,231,256,282, %T A025729 310,339,369,401,434,468,503,540,578,617,658,700,743,787,833,880,928, %U A025729 978,1029,1081,1134,1189,1245,1302,1361,1421,1482,1545,1609,1674,1740,1808 %N A025729 Index of 8^n within sequence of numbers of form 5^i*8^j. %C A025729 Positions of zeros in A025653. - _R. J. Mathar_, Jul 06 2025 %Y A025729 Cf. A001018, A025623. %Y A025729 Differs from A025714 at a(65). %K A025729 nonn %O A025729 1,2 %A A025729 _David W. Wilson_