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 | 27 |
| 2 | 324 |
| 3 | 1838 |
| 4 | 7608 |
| 5 | 26314 |
| 6 | 80819 |
| 7 | 227112 |
| 8 | 593400 |
| 9 | 1455898 |
| 10 | 3378085 |
| 11 | 7455007 |
| 12 | 15725041 |
| 13 | 31840088 |
| 14 | 62123439 |
| 15 | 117194882 |
| 16 | 214407666 |
| 17 | 381424761 |
| 18 | 661365902 |
| 19 | 1120086056 |
| 20 | 1856304530 |
| 21 | 3015496746 |
| 22 | 4808693047 |
| 23 | 7537606592 |
| 24 | 11627841824 |