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 | 243 |
| 2 | 7776 |
| 3 | 62764 |
| 4 | 297859 |
| 5 | 1108969 |
| 6 | 3516324 |
| 7 | 9866389 |
| 8 | 25128396 |
| 9 | 59129041 |
| 10 | 130220738 |
| 11 | 271055417 |
| 12 | 537353315 |
| 13 | 1020817107 |
| 14 | 1867650094 |
| 15 | 3304497043 |
| 16 | 5674041696 |
| 17 | 9482969967 |
| 18 | 15465546464 |
| 19 | 24666658243 |
| 20 | 38548857659 |
| 21 | 59128689861 |