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) |
|---|---|
| 1 | 30 |
| 2 | 3366 |
| 3 | 183684 |
| 4 | 8092632 |
| 5 | 316544562 |
| 6 | 11481159930 |
| 7 | 395458712832 |
| 8 | 13123275738432 |
| 9 | 423525613823934 |
| 10 | 13378503050329794 |
| 11 | 415551681048983880 |
| 12 | 12735329289585862200 |
| 13 | 386086186106267296494 |
| 14 | 11601553028839397641626 |
| 15 | 346091203382132944992240 |
| 16 | 10262539815169483791720708 |