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 | 3 |
| 4 | 5 |
| 5 | 83 |
| 6 | 88 |
| 7 | 171 |
| 8 | 259 |
| 9 | 430 |
| 10 | 7139 |
| 11 | 7569 |
| 12 | 14708 |
| 13 | 22277 |
| 14 | 36985 |
| 15 | 614037 |
| 16 | 651022 |
| 17 | 1265059 |
| 18 | 1916081 |
| 19 | 3181140 |
| 20 | 52814321 |
| 21 | 55995461 |
| 22 | 108809782 |
| 23 | 164805243 |
| 24 | 273615025 |
| 25 | 4542645643 |
| 26 | 4816260668 |
| 27 | 9358906311 |
| 28 | 14175166979 |
| 29 | 23534073290 |
| 30 | 390720339619 |
| 31 | 414254412909 |