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) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 113 |
| 3 | 1304 |
| 4 | 14577 |
| 5 | 160926 |
| 6 | 1771345 |
| 7 | 19486828 |
| 8 | 214358369 |
| 9 | 2357946962 |
| 10 | 25937423601 |
| 11 | 285311669280 |
| 12 | 3138428374993 |
| 13 | 34522712141734 |
| 14 | 379749833580497 |
| 15 | 4177248169412276 |
| 16 | 45949729863568065 |
| 17 | 505447028499288858 |
| 18 | 5559917313492225649 |
| 19 | 61159090448414539432 |