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 A025710 #7 Jul 06 2025 13:59:33 %S A025710 1,2,4,7,10,14,19,25,31,38,46,55,64,74,85,96,108,121,135,149,164,180, %T A025710 197,214,232,251,271,291,312,334,356,379,403,428,453,479,506,534,562, %U A025710 591,621,652,683,715,748,781,815,850,886,922,959,997,1036,1075,1115,1156,1198 %N A025710 Index of 5^n within sequence of numbers of form 5^i*9^j. %C A025710 Positions of zeros in A025679. - _R. J. Mathar_, Jul 06 2025 %K A025710 nonn %O A025710 1,2 %A A025710 _David W. Wilson_