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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 14 |
| 6 | 34 |
| 7 | 83 |
| 8 | 202 |
| 9 | 495 |
| 10 | 1224 |
| 11 | 3046 |
| 12 | 7616 |
| 13 | 19115 |
| 14 | 48130 |
| 15 | 121527 |
| 16 | 307602 |
| 17 | 780244 |
| 18 | 1982834 |
| 19 | 5047377 |
| 20 | 12867438 |
| 21 | 32847357 |
| 22 | 83952780 |
| 23 | 214806750 |
| 24 | 550170300 |
| 25 | 1410412561 |
| 26 | 3618785462 |
| 27 | 9292203549 |
| 28 | 23877482490 |
| 29 | 61397367692 |
| 30 | 157972743178 |
| 31 | 406693829059 |
| 32 | 1047585820586 |
| 33 | 2699811117189 |