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.
| n | a(n) |
|---|---|
| 1 | 123456789 |
| 2 | 246913578 |
| 3 | 370370367 |
| 4 | 493827156 |
| 5 | 617283945 |
| 6 | 740740734 |
| 7 | 864197523 |
| 8 | 987654312 |
| 9 | 1111111101 |
| 10 | 1234567890 |
| 11 | 1358024679 |
| 12 | 1481481468 |
| 13 | 1604938257 |
| 14 | 1728395046 |
| 15 | 1851851835 |
| 16 | 1975308624 |
| 17 | 2098765413 |
| 18 | 2222222202 |
| 19 | 2345678991 |
| 20 | 2469135780 |
| 21 | 2592592569 |
| 22 | 2716049358 |
| 23 | 2839506147 |