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 | 1 |
| 3 | 5 |
| 4 | 1 |
| 5 | 8 |
| 6 | 11 |
| 7 | 107 |
| 8 | 1 |
| 9 | 12 |
| 10 | 17 |
| 11 | 257 |
| 12 | 193 |
| 13 | 3664 |
| 14 | 5183 |
| 15 | 479 |
| 16 | -261 |
| 17 | -3436 |
| 18 | -37633 |
| 19 | -612925 |
| 20 | -2017297 |
| 21 | -1786352 |
| 22 | -4013599 |
| 23 | -82613087 |
| 24 | -19965872 |
| 25 | -12529443 |
| 26 | -27919051 |
| 27 | -9392863 |
| 28 | -12664034 |
| 29 | -255710551 |
| 30 | -242359181 |
| 31 | -5356570201 |
| 32 | -19391659278 |
| 33 | -55136182529 |
| 34 | -116171203003 |