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) |
|---|---|
| 0 | 1 |
| 1 | 94 |
| 2 | 4371 |
| 3 | 134044 |
| 4 | 3049501 |
| 5 | 54891018 |
| 6 | 814216767 |
| 7 | 10235867928 |
| 8 | 111315063717 |
| 9 | 1063677275518 |
| 10 | 9041256841903 |
| 11 | 69042324974532 |
| 12 | 477542747740513 |
| 13 | 3012192716517082 |
| 14 | 17427686431277403 |
| 15 | 92947660966812816 |
| 16 | 458929076023638279 |
| 17 | 2105674584108457986 |