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 | 133 |
| 2 | 7371 |
| 3 | 238602 |
| 4 | 5248750 |
| 5 | 85709988 |
| 6 | 1101296924 |
| 7 | 11604306012 |
| 8 | 103402141164 |
| 9 | 797856027500 |
| 10 | 5431803835220 |
| 11 | 33125614508610 |
| 12 | 183226228734150 |
| 13 | 928793118827175 |
| 14 | 4352687787515625 |
| 15 | 18999500104801125 |
| 16 | 77742635367237750 |
| 17 | 299864450702202750 |