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 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 10 |
| 5 | 22 |
| 6 | 48 |
| 7 | 103 |
| 8 | 222 |
| 9 | 481 |
| 10 | 1038 |
| 11 | 2241 |
| 12 | 4842 |
| 13 | 10456 |
| 14 | 22582 |
| 15 | 48776 |
| 16 | 105342 |
| 17 | 227514 |
| 18 | 491386 |
| 19 | 1061281 |
| 20 | 2292132 |
| 21 | 4950510 |
| 22 | 10692006 |
| 23 | 23092378 |
| 24 | 49874474 |
| 25 | 107717891 |
| 26 | 232646956 |
| 27 | 502466304 |
| 28 | 1085216744 |
| 29 | 2343829586 |
| 30 | 5062156694 |
| 31 | 10933145610 |
| 32 | 23613191032 |