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 | 8 |
| 2 | 64 |
| 3 | 200 |
| 4 | 643 |
| 5 | 2356 |
| 6 | 7561 |
| 7 | 23071 |
| 8 | 72410 |
| 9 | 223804 |
| 10 | 678174 |
| 11 | 2060069 |
| 12 | 6253794 |
| 13 | 18886989 |
| 14 | 56994221 |
| 15 | 172026022 |
| 16 | 518680170 |
| 17 | 1563104966 |
| 18 | 4710798095 |
| 19 | 14194683842 |
| 20 | 42764679095 |
| 21 | 128836561789 |
| 22 | 388135277342 |
| 23 | 1169254115920 |
| 24 | 3522329560926 |