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 | 504 |
| 2 | 33264 |
| 3 | 368928 |
| 4 | 2130912 |
| 5 | 7877520 |
| 6 | 24349248 |
| 7 | 59298624 |
| 8 | 136382400 |
| 9 | 268953048 |
| 10 | 519916320 |
| 11 | 892872288 |
| 12 | 1559827584 |
| 13 | 2432718288 |
| 14 | 3913709184 |
| 15 | 5766344640 |
| 16 | 8728481664 |
| 17 | 12165343344 |
| 18 | 17750901168 |
| 19 | 23711133600 |
| 20 | 33306154560 |
| 21 | 43406592768 |
| 22 | 58929571008 |