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 | 8 |
| 4 | 22 |
| 5 | 57 |
| 6 | 136 |
| 7 | 315 |
| 8 | 710 |
| 9 | 1577 |
| 10 | 3460 |
| 11 | 7527 |
| 12 | 16258 |
| 13 | 34917 |
| 14 | 74624 |
| 15 | 158819 |
| 16 | 336766 |
| 17 | 711777 |
| 18 | 1500028 |
| 19 | 3152991 |
| 20 | 6611834 |
| 21 | 13835357 |
| 22 | 28894072 |
| 23 | 60234843 |
| 24 | 125363062 |
| 25 | 260512857 |
| 26 | 540599156 |
| 27 | 1120345175 |
| 28 | 2318984050 |
| 29 | 4794555477 |
| 30 | 9902285680 |
| 31 | 20430920787 |
| 32 | 42114540398 |