A147637 a(n) = largest n-distinct-decimal-digit number such that the string formed by the last k digits is divisible by k for any 1<=k<=n.
9, 98, 984, 9876, 98720, 987540, 9864120, 98765120, 876351240, 9876351240
Offset: 1
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.