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 A025732 #16 Jul 06 2025 13:39:42 %S A025732 1,2,4,7,11,16,22,29,37,46,56,67,79,92,106,121,137,154,172,190,209, %T A025732 229,250,272,295,319,344,370,397,425,454,484,515,547,580,614,649,685, %U A025732 721,758,796,835,875,916,958,1001,1045,1090,1136,1183,1231,1280,1330,1381,1433 %N A025732 Index of 8^n within sequence of numbers of form 8^i*9^j. %C A025732 Positions of zeros in A025682. - _R. J. Mathar_, Jul 06 2025 %Y A025732 Cf. A001018, A025633. %K A025732 nonn %O A025732 1,2 %A A025732 _David W. Wilson_