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 | 2049 |
| 2 | 179195 |
| 3 | 4371451 |
| 4 | 53022429 |
| 5 | 411625181 |
| 6 | 2340123799 |
| 7 | 10567261335 |
| 8 | 39970994201 |
| 9 | 131381059609 |
| 10 | 385311670611 |
| 11 | 1028320041299 |
| 12 | 2535168764725 |
| 13 | 5841725563701 |
| 14 | 12699321029039 |
| 15 | 26241941903791 |
| 16 | 51864082352049 |