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 | 0 |
| 1 | 7 |
| 2 | 76 |
| 3 | 747 |
| 4 | 4120 |
| 5 | 15655 |
| 6 | 46692 |
| 7 | 117691 |
| 8 | 262192 |
| 9 | 531495 |
| 10 | 1000060 |
| 11 | 1771627 |
| 12 | 2986056 |
| 13 | 4826887 |
| 14 | 7529620 |
| 15 | 11390715 |
| 16 | 16777312 |
| 17 | 24137671 |
| 18 | 34012332 |
| 19 | 47045995 |
| 20 | 64000120 |
| 21 | 85766247 |
| 22 | 113380036 |
| 23 | 148036027 |
| 24 | 191103120 |
| 25 | 244140775 |
| 26 | 308915932 |