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 | 3 |
| 3 | 6 |
| 4 | 15 |
| 5 | 28 |
| 6 | 66 |
| 7 | 120 |
| 8 | 253 |
| 9 | 465 |
| 10 | 903 |
| 11 | 1596 |
| 12 | 3003 |
| 13 | 5151 |
| 14 | 9180 |
| 15 | 15576 |
| 16 | 26796 |
| 17 | 44253 |
| 18 | 74305 |
| 19 | 120295 |
| 20 | 196878 |
| 21 | 314028 |
| 22 | 502503 |
| 23 | 788140 |
| 24 | 1241100 |
| 25 | 1917861 |
| 26 | 2968266 |
| 27 | 4531555 |
| 28 | 6913621 |
| 29 | 10421895 |
| 30 | 15705210 |
| 31 | 23409903 |
| 32 | 34857075 |
| 33 | 51445296 |
| 34 | 75774205 |
| 35 | 110759286 |