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 | 35 |
| 2 | 1225 |
| 3 | 7210 |
| 4 | 42436 |
| 5 | 147084 |
| 6 | 509796 |
| 7 | 1341606 |
| 8 | 3530641 |
| 9 | 7826035 |
| 10 | 17347225 |
| 11 | 34169660 |
| 12 | 67305616 |
| 13 | 121583280 |
| 14 | 219632400 |
| 15 | 371285460 |
| 16 | 627652809 |
| 17 | 1006704699 |
| 18 | 1614673489 |
| 19 | 2481460982 |
| 20 | 3813556516 |
| 21 | 5656542892 |
| 22 | 8390193604 |
| 23 | 12078020682 |