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 | 63 |
| 2 | 705 |
| 3 | 3647 |
| 4 | 12609 |
| 5 | 34111 |
| 6 | 78273 |
| 7 | 159615 |
| 8 | 297857 |
| 9 | 518719 |
| 10 | 854721 |
| 11 | 1345983 |
| 12 | 2041025 |
| 13 | 2997567 |
| 14 | 4283329 |
| 15 | 5976831 |
| 16 | 8168193 |
| 17 | 10959935 |
| 18 | 14467777 |
| 19 | 18821439 |
| 20 | 24165441 |
| 21 | 30659903 |
| 22 | 38481345 |
| 23 | 47823487 |
| 24 | 58898049 |
| 25 | 71935551 |
| 26 | 87186113 |