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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 11 |
| 5 | 13 |
| 6 | 14 |
| 7 | 34 |
| 8 | 931 |
| 9 | 7037 |
| 10 | 95017 |
| 11 | 3549221 |
| 12 | 75296795 |
| 13 | 3518502151 |
| 14 | 34778126848 |
| 15 | 747746329129 |
| 16 | 13428156340222 |
| 17 | 728260738568834 |
| 18 | 17205012007789762 |