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 | 1 |
| 2 | 133 |
| 3 | 615 |
| 4 | 64107 |
| 5 | 296429 |
| 6 | 30899441 |
| 7 | 142878163 |
| 8 | 14893466455 |
| 9 | 68866978137 |
| 10 | 7178619931869 |
| 11 | 33193740583871 |
| 12 | 3460079913694403 |
| 13 | 15999314094447685 |
| 14 | 1667751339780770377 |
| 15 | 7711636199783200299 |
| 16 | 803852685694417627311 |
| 17 | 3716992648981408096433 |