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 | 10045 |
| 3 | 11310 |
| 4 | 20475 |
| 5 | 52360 |
| 6 | 197472 |
| 7 | 230300 |
| 8 | 341055 |
| 9 | 367290 |
| 10 | 836640 |
| 11 | 2437800 |
| 12 | 2939300 |
| 13 | 3262700 |
| 14 | 4048352 |
| 15 | 4268110 |
| 16 | 4293450 |
| 17 | 4619160 |
| 18 | 4816000 |
| 19 | 5969040 |
| 20 | 6192520 |
| 21 | 6913340 |
| 22 | 6997320 |
| 23 | 8531145 |
| 24 | 10933650 |
| 25 | 12397000 |
| 26 | 16008300 |
| 27 | 18573282 |
| 28 | 18816875 |
| 29 | 21430710 |
| 30 | 24383520 |