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 | 14 |
| 3 | 182 |
| 4 | 3614 |
| 5 | 99302 |
| 6 | 3554894 |
| 7 | 159175382 |
| 8 | 8654995454 |
| 9 | 558786468422 |
| 10 | 42086200603694 |
| 11 | 3645412584724022 |
| 12 | 358877175474325214 |
| 13 | 39758874175808713382 |
| 14 | 4915216680878167372814 |
| 15 | 673139563824188490513302 |
| 16 | 101475126400695241802946494 |
| 17 | 16744618803625299734467026182 |