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 | 5 |
| 5 | 8 |
| 6 | 23 |
| 7 | 29 |
| 8 | 40 |
| 9 | 131 |
| 10 | 136 |
| 11 | 215 |
| 12 | 611 |
| 13 | 767 |
| 14 | 2153 |
| 15 | 2576 |
| 16 | 22973 |
| 17 | 42689 |
| 18 | 85712 |
| 19 | 85864 |
| 20 | 112067 |
| 21 | 538508 |
| 22 | 631715 |