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 | 13 |
| 3 | 77 |
| 4 | 294 |
| 5 | 855 |
| 6 | 2071 |
| 7 | 4403 |
| 8 | 8492 |
| 9 | 15189 |
| 10 | 25585 |
| 11 | 41041 |
| 12 | 63218 |
| 13 | 94107 |
| 14 | 136059 |
| 15 | 191815 |
| 16 | 264536 |
| 17 | 357833 |
| 18 | 475797 |
| 19 | 623029 |
| 20 | 804670 |
| 21 | 1026431 |
| 22 | 1294623 |
| 23 | 1616187 |
| 24 | 1998724 |
| 25 | 2450525 |
| 26 | 2980601 |
| 27 | 3598713 |
| 28 | 4315402 |
| 29 | 5142019 |
| 30 | 6090755 |
| 31 | 7174671 |
| 32 | 8407728 |
| 33 | 9804817 |
| 34 | 11381789 |
| 35 | 13155485 |