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 | 5 |
| 4 | 8 |
| 5 | 11 |
| 6 | 14 |
| 7 | 33 |
| 8 | 36 |
| 9 | 39 |
| 10 | 42 |
| 11 | 67 |
| 12 | 70 |
| 13 | 73 |
| 14 | 98 |
| 15 | 101 |
| 16 | 132 |
| 17 | 429 |
| 18 | 1430 |
| 19 | 4862 |
| 20 | 16796 |
| 21 | 58786 |
| 22 | 208012 |
| 23 | 742900 |
| 24 | 2674440 |
| 25 | 9694845 |
| 26 | 35357670 |
| 27 | 103981965 |
| 28 | 129644790 |
| 29 | 357688755 |
| 30 | 383351580 |
| 31 | 477638700 |