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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 7 |
| 6 | 11 |
| 7 | 182 |
| 8 | 427 |
| 9 | 649 |
| 10 | 859 |
| 11 | 1559 |
| 12 | 5579 |
| 13 | 10577 |
| 14 | 11830 |
| 15 | 19915 |
| 16 | 533022 |
| 17 | 546690 |
| 18 | 569462 |
| 19 | 673682 |
| 20 | 1050721 |
| 21 | 1233092 |
| 22 | 1621270 |
| 23 | 1771002 |
| 24 | 9151954 |