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 | 122 |
| 2 | 1572 |
| 3 | 12156 |
| 4 | 59720 |
| 5 | 217170 |
| 6 | 655352 |
| 7 | 1699092 |
| 8 | 3938716 |
| 9 | 8348950 |
| 10 | 16470560 |
| 11 | 30608872 |
| 12 | 54122412 |
| 13 | 91697506 |
| 14 | 149751320 |
| 15 | 236861800 |
| 16 | 364284732 |
| 17 | 546512242 |
| 18 | 802022236 |
| 19 | 1153833900 |
| 20 | 1630502000 |
| 21 | 2266990462 |
| 22 | 3105706852 |
| 23 | 4197621376 |