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 A025744 #7 Jul 06 2025 14:32:54 %S A025744 1,3,6,10,16,23,31,40,51,63,76,91,107,124,142,162,183,205,229,254,280, %T A025744 307,336,366,397,430,464,499,535,573,612,652,694,737,781,826,873,921, %U A025744 970,1021,1073,1126,1180,1236,1293,1351,1411,1472,1534,1597,1662,1728,1795 %N A025744 Index of 10^n within sequence of numbers of form 6^i*10^j. %C A025744 Positions of zeros in A025663. - _R. J. Mathar_, Jul 06 2025 %K A025744 nonn %O A025744 1,2 %A A025744 _David W. Wilson_