A114514 The digits on a numerical pad from upper left to lower right.
7, 8, 9, 4, 5, 6, 1, 2, 3, 0
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.