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 | 1 |
| 2 | 129 |
| 3 | 2189 |
| 4 | 16514 |
| 5 | 78129 |
| 6 | 282381 |
| 7 | 823549 |
| 8 | 2113796 |
| 9 | 4787349 |
| 10 | 10078641 |
| 11 | 19487181 |
| 12 | 36149146 |
| 13 | 62748529 |
| 14 | 106237821 |
| 15 | 171024381 |
| 16 | 270565896 |
| 17 | 410338689 |
| 18 | 617568021 |
| 19 | 893871757 |
| 20 | 1290222306 |
| 21 | 1802748761 |
| 22 | 2513846349 |
| 23 | 3404825469 |
| 24 | 4627099444 |
| 25 | 6103828145 |
| 26 | 8094560241 |