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 | 32 |
| 2 | 454 |
| 3 | 4718 |
| 4 | 41506 |
| 5 | 329462 |
| 6 | 2441314 |
| 7 | 17234438 |
| 8 | 117437746 |
| 9 | 779305142 |
| 10 | 5067707074 |
| 11 | 32440729958 |
| 12 | 205120773586 |
| 13 | 1284333040022 |
| 14 | 7978977787234 |
| 15 | 49258610238278 |
| 16 | 302555048903026 |
| 17 | 1850666770922102 |
| 18 | 11281963755617794 |
| 19 | 68586728901231398 |
| 20 | 416015651355490066 |
| 21 | 2518652552044759382 |