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 | 503 |
| 2 | 1826 |
| 3 | 3996 |
| 4 | 8784 |
| 5 | 15300 |
| 6 | 26136 |
| 7 | 48328 |
| 8 | 73206 |
| 9 | 117000 |
| 10 | 173754 |
| 11 | 228872 |
| 12 | 302904 |
| 13 | 401128 |
| 14 | 537586 |
| 15 | 685060 |
| 16 | 882000 |
| 17 | 1091034 |
| 18 | 1274672 |
| 19 | 1540730 |
| 20 | 1811754 |
| 21 | 2158812 |
| 22 | 2682468 |
| 23 | 3219730 |
| 24 | 3740670 |
| 25 | 4260744 |
| 26 | 4643100 |
| 27 | 5055696 |
| 28 | 6011352 |
| 29 | 7034400 |