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 | 3 |
| 1 | 34 |
| 2 | 377 |
| 3 | 1134903170 |
| 4 | 832040 |
| 5 | 317811 |
| 6 | 3524578 |
| 7 | 39088169 |
| 8 | 20365011074 |
| 9 | 53316291173 |
| 10 | 32951280099 |
| 11 | 365435296162 |
| 12 | 7540113804746346429 |
| 13 | 31940434634990099905 |
| 14 | 308061521170129 |
| 15 | 3416454622906707 |